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Education
Leading
5 min read

Why I teach over my students’ heads

Successful teaching is a work of empathy that stretches the mind.
A blackboard covered in chalk writing and highlights.
James's chalkboard.

I’ve been teaching college students for almost 30 years now. As much as I grumble during grading season, it is a pretty incredible way to make a living. I remain grateful. 

I am not the most creative pedagogue. My preference is still chalk, but I can live with a whiteboard (multiple colors of chalk or markers are a must). Over the course of 100 minutes, various worlds emerge that I couldn’t have anticipated before I walked into class that morning. (I take photos of what emerges so I can remember how to examine the students later.) I think there is something important about students seeing ideas—and their connections—unfold in “real time,” so to speak.  

I’ve never created a PowerPoint slide for a class. I put few things on Moodle, and only because my university requires it. I’ve heard people who use “clickers” in class and I have no idea what they mean. I find myself skeptical whenever administrators talk about “high impact” teaching practices (listening to lectures produced the likes of Hegel and Hannah Arendt; what have our bright shiny pedagogical tricks produced?). I am old and curmudgeonly about such “progress.”  

But I care deeply about teaching and learning. I still get butterflies before every single class. I think (hope!) that’s because I have a sense of what’s at stake in this vocation.  

I am probably most myself in a classroom. As much as I love research, and imagine myself a writer, the exploratory work of teaching is a crucial laboratory for both. I love making ideas come alive for students—especially when students are awakened by such reflection and grappling with challenging texts. You see the gears grinding. You see the brow furrowing. Every once in a while, you sense the reticence and resistance to an insight that unsettles prior biases or assumptions; but the resistance is a sign of getting it. And then you see the light dawn. I’m a sucker for that spectacle.  

This is how the hunger sets in. If you can invite a student to care about the questions, to grasp their import, and experience the unique joy of joining the conversation that is philosophy. 

Successful teaching is, fundamentally, a work of empathy. As a teacher, you have to try to remember your way back into not knowing what you now take for granted. You have to re-enter a student’s puzzlement, or even apathy, to try to catalyze questions and curiosity. Because I teach philosophy, my aim is nothing less than existential engagement. I’m not trying to teach them how to write code or design a bridge; I’m trying to get them to envision a different way to live. But, for me, it’s impossible to separate the philosophical project from the history of philosophy: to do philosophy is to join the long conversation that is the history of philosophy. So we are always wresting with challenging, unfamiliar texts that arrive from other times that might as well be other planets for students in the twenty-first century.  

So successful teaching requires a beginner’s mindset on the part of the teacher, a charitable capacity to remember what ignorance (in the technical sense) feels like. To do so without condescension is absolutely crucial if teaching is going to be an art of invitation rather than an act of alienation. (The latter, I fear, is more common than we might guess.) 

Such empathy means meeting students where they are. But successful teaching is also about stretching students’ minds and imaginations into new territory and unfamiliar habits of mind. This is where I find myself especially skeptical of pedagogical developments that, to my eyes, run the risk of infantilizing college students. (I remember a workshop in which a “pedagogical expert” explained that the short attention span of students required changing the PowerPoint slide every 8 seconds. This does not sound like a recipe for making students more human, I confess.) 

That’s why I am unapologetic about trying to teach over my students’ heads. I don’t mean, of course, that I’m satisfied with spouting lectures that elude their comprehension. That would violate the fundamental rule of empathy. But such empathy—meeting students where they are—is not mutually exclusive with also inviting them into intellectual worlds and conversations where they won’t comprehend everything.  

This is how the hunger sets in. If you can invite a student to care about the questions, to grasp their import, and experience the unique joy of joining the conversation that is philosophy, then part of the thrill, I think, is being admitted into a world where you don’t “get” everything.  

This gambit—every once in a while, talking about ideas and thinkers as if students should know them—is, I maintain, still an act of empathy.

When I’m teaching, I think of this in a couple of ways. At the same time that I am trying to make core ideas and concepts accessible and understandable, I don’t regret talking about attendant ideas and concepts that will, to this point, still elude students. For the sharpest students, this registers as something to learn, something to be curious about. Or sometimes when we’re focused on, say, Pascal or Hegel, I’ll plant little verbal footnotes—tiny digressions about how Hannah Arendt engaged their work in the 20th century, or how O.K. Bouwsma’s reading of Anselm is akin to something we’re talking about. The vast majority of students won’t be familiar with either, but it’s another indicator of how big and rich and complicated the intellectual cosmos of philosophy is. For some of these students (not all, certainly), this becomes tantalizing: they want to become the kind of people for whom a vast constellation of ideas and thinkers are as familiar and present as their friends and cousins. This becomes a hunger to belong to such a world, to join such a conversation.  

This gambit—every once in a while, talking about ideas and thinkers as if students should know them—is, I maintain, still an act of empathy. To both meet students where they are and, at the same time, teach “over their heads,” is an invitation to stretch into new terrain and thereby swell the soul into the fullness for which it was made. The things that skitter just over their heads won’t be on the exam, of course; but I’m hoping they’ll chase some of them for a lifetime to come. 

  

This article was originally published on James K A Smith’s Substack Quid Amo.

Explainer
Biology
Culture
Ethics
9 min read

Ethics needs to catch-up with genetic innovation

Are we morally obliged to genetically edit?

John is Professor Emeritus of Cell and Molecular Biology at the University of Exeter.

An artistic visualisation of a DNA strand growing flowers from it.
Artist Nidia Dias visualises how AI could assist genomic studies.
Google Deepmind via Unsplash.

It makes me feel very old when I realise that Louise Brown, the first baby to be born via in vitro fertilisation (IVF), will be 47 years old on July 25th this year. Since her birth in 1978, over 10 million IVF-conceived babies have been born worldwide, of whom about 400,000 have been in the UK. Over that period, success rates have increased such that in some clinics, about 50 per cent of IVF cycles lead to a live birth. At the same time, there have also been significant advances in genetics, genomics and stem cell biology all of which, in relation to human embryos, raise interesting and sometimes challenging ethical issues. 

I start with a question: what is the ‘moral status’ of the early human embryo? Whether the embryo arises by normal fertilisation after sexual intercourse or by IVF, there is a phase of a few days during which the embryo is undergoing the earliest stages of development but has not yet implanted into the wall of the uterus; the prospective mother is not yet pregnant. In UK law, based on the Human Fertilisation and Embryology Act (1990), these early embryos are not regarded as human persons but nevertheless should be treated with some respect. Nevertheless, there are some who oppose this view and believe that from the ‘moment of conception’ (there actually isn’t such a thing – fertilisation takes several hours) embryos should be treated as persons. In ‘conventional’ IVF this debate is especially relevant to the spare embryos that are generated during each IVF cycle and which are stored, deep-frozen, in increasing numbers for possible use in the future.  

A further dimension was added to this area of debate when it became possible to test IVF embryos for the presence of genetic mutations that cause disease. This process is called pre-implantation genetic diagnosis and enables prospective parents who are at known risk of passing on a deleterious mutation to avoid having a child who possesses that mutation. But what about the embryos that are rejected? They are usually discarded or destroyed but some are used in research. However, those who hold a very conservative view of the status of the early embryo will ask what right we have to discard/destroy an embryo because it has the ‘wrong genes’. And even for the many who hold a less conservative view, there are still several questions which remain, including ‘which genetic variants we should be allowed to select against?; should we allow positive selection for genes known to promote health in some way?’; should we allow selection for non-therapeutic reasons, for example, sporting prowess?’ These questions will not go away and there are already indications that non-therapeutic selection is being offered in a small number of countries. 

Genetic modification 

This leads us on to think about altering human genes. Initially, the issue was genetic modification (GM) which in general involves adding genes. GM techniques have been used very successfully in curing several conditions, including congenital severe immune deficiency and as part of treatment programmes for certain very difficult childhood cancers. One key feature of these examples is that the genetic change is not passed on to the next generation – it just involves the body of someone who has already been born. Thus, we call them somatic genetic changes (from the Greek, sōmatikos, meaning ‘of the body’).  

Genetic modification which is passed on to the next generation is called germline GM which means that the genetic change must get into the ‘germ cells’, i.e., the sperm or egg. Currently, the only feasible way of doing this is to carry out the genetic modification on the very early embryo. At present however, with just one very specific exception, GM of human embryos is forbidden in all the countries where it would be possible to do it. There is firstly the question of deciding whether it is right to change the genetic makeup of a future human being in such a way that the change is passed to succeeding generations. Secondly, there are concerns about the long-term safety of the procedure. Although it would involve adding specific genes with known effects, the complexity of genetic regulation and gene interactions during human development means that scientist are concerned about the risks of unforeseen effects. And thirdly, germline GM emphasises dramatically the possibility of using GM for enhancement rather than for medical reasons.  

Genome editing 

This leads us to think about genome editing. In 2011, it was shown that a bacterial system which edits the genomes of invading viruses could also work in other organisms This opened up a large array of applications in research, agriculture and medicine. However, the ethical issues raised by genome editing are, in essence, the same as raised by GM and so there is still a universal prohibition of using the technique with human embryos: germline genome editing is forbidden. Despite this, a Chinese medical scientist, He Jiankui, announced in 2018 that he had edited the genomes of several embryos, making them resistant to HIV; two babies with edited genomes had already been born while several more were on the way. The announcement caused outrage across the world, including in China itself. He Jiankui was removed from his job and then, after a trial, was imprisoned for three years; his two colleagues who collaborated in this work received shorter sentences. 

At present the universal prohibition of human germline genome editing remains in place. However, the discussion has been re-opened in a paper by an Anglo-Australian group.  They suggest that we need to develop heritable (i.e. germline) polygenic genome editing in order to reduce significantly an individual's risk of developing degenerative diseases. These includecoronary artery disease, Alzheimer’s disease, major depressive disorder, diabetes and schizophrenia. I note in passing that one of the authors is Julian Savulescu at Oxford who is already well-known for his view that parents who are able to do so, are ‘morally obliged’ to seek to have genetically enhanced children, whether by PGD, GM or genome editing. The use of polygenic editing, which would, in all likelihood, be available only to the (wealthy) few, fits in well with his overall ethical position. Needless to say, the paper, published in the prestigious journal Nature, attracted a lot of attention in the world of medical genetics. It was not however, universally welcomed – far from it. Another international group of medical scientists and ethicists has stated that ‘Human embryo editing against disease is unsafe and unproven …’ and even go as far as to suggest that the technology is ‘… going to be taken up by people who are pushing a eugenics agenda …’ remain very pertinent. 

Harder still and harder 

I have no doubt that amongst different reader there will be a range of opinions about the topics discussed so far. For anyone who is Christian (or indeed an adherent of almost any religious faith), one of the difficulties is that modern science, technology and medicine have thrown up ethical questions that could not have even been dreamed of by the writers of the Bible (or of other religious texts). We just have to use our wisdom, knowledge and general moral compass (and for some, prayer) to try to reach a decision. And if what I have already written makes that difficult, some recent developments multiply that difficulty still more.  

In the early years of this century, scientists developed methods of transforming a range of human cells into ‘pluripotent’ stem cells, i.e., cells capable of growing into a wide range of cell types. It also became possible to get both induced stem cells and natural stem cells to develop into functional differentiated cells corresponding to specific body tissues. This has huge potential for repairing damaged organs. However, other applications are potentially much more controversial. In 2023, Cambridge scientists reported that they had used stem cells to create synthetic mouse embryos which progressed at least as far as brain and heart formation within the normal pattern of mouse embryo development. 

At about the same time, the Cambridge group used individual human embryonic stem cells (from the blastocyst stage of embryonic development), to ‘grow’ early human embryos in the lab. There is no intention to use these embryos to start a pregnancy – indeed, it would be illegal to do so – but instead to study a period of embryo development which is not permitted with ‘real’ human embryos (research must not continue past 14 days of development). But how should we regard synthetic embryos? What is their moral status? For those who hold a conservative view of the normal human embryo (see earlier), should we regard these synthetic embryos as persons? Neither does the law help us. The legal frameworks covering in vitro fertilisation and early embryos (Human Fertilisation and Embryology Acts, 1990, 2008) do not cover artificial embryos – they were unknown at the times the legislation was drawn up. Indeed, synthetic embryos/embryo models are, in law, not actually embryos, however much they look like/behave like early embryos. Earlier this month, the Human Fertilisation and Embryology Authority (HFEA) discussed these developments with a view to recommending new legislation, but this will not dispel an unease felt by some people, including the science correspondent of The Daily Telegraph, who wrote that this research is irresponsible.  

But there is more. In addition to synthetic embryos, the HFEA also discussed, the possible use of gametes – eggs and sperm – grown from somatic stem cells (e.g., from skin) in the lab. Some authors have suggested that the production of gametes in vitro is the ‘Holy Grail’ of fertility research. I am not so sure about that but it is clear that a lot of effort is going into this research. Success so far is limited to the birth of several baby mice, ‘conceived’ via lab-grown eggs and normal sperm. Nevertheless, it is predicted that lab-grown human eggs and sperm will be available within a decade. Indeed, several clinicians have suggested that these ‘IVGs’ (in vitro gametes) seem destined to become “a routine part of clinical practice”.  

The lab-grown gametes would be used in otherwise normal IVF procedures, the only novelty being the ‘history’ of the eggs and/or sperm. Clinicians have suggested that this could help couples in which one or both were unable to produce the relevant gamete, but who still wanted to have children. In this application, the use of IVGs poses no new ethical questions although we may be concerned about the possibility of the gametes carrying new genetic mutations. However, some of the more wide-ranging scenarios do at the least make us to stop and think. For example, it would be possible for a same-sex couple to have a child with both of them being a genetic parent (obviously for males, this would also involve a surrogate mother). More extremely, a person could have a child of which he or she was actually, in strictly genetic terms, both the ‘father’ and the ‘mother’. What are we to make of this? Where are our limits?  

Dr Christopher Wild, former director of International Agency for Research on Cancer, explores in depth many of the developments and issue I outlined above. His article on why a theology of embryos is needed, is clear, well-written, helpful and thought-provoking. 

 

This article is based on a longer blog post with full footnotes.  

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