I went to the opera practically every night. I went to something practically every night, just learning and seeing and absorbing, and what I noticed is that there were singers that were only sort of slightly older than I whose voices sounded as though they were many decades older than that, and didn’t sound pretty, and I needed to understand what was happening. I mean there were singers that were 28 or 30 years old or something, and I would speak to them afterwards to say, “Was your voice tired tonight? Tell me what’s happening,” because I didn’t understand it. Their voices should have sounded fresh and blooming and wonderful, but instead they sounded different, and it was because they were singing a different opera every night, and singing whatever was offered, and I didn’t understand and needed to understand — because no one was telling me these things — why they just didn’t say no. Why didn’t they just say, “Oh no, I don’t think I should.”

And yet, despite the high moral and ethical quality of social commiseration, political dedication and a deep commitment to equity, there was something rather disturbing about standard leftwing politics of that time: in particular, its scepticism of process-oriented political thinking, including democratic procedures that permit pluralism. The major institutions of democracy got no more credit than what could be portioned out to what was seen as "bourgeois democracy," on the deficiencies of which the critics were most vocal. The power of money in many democratic practices was rightly identified, but the alternatives – including the terrible abuses of non-oppositional politics – did not receive serious critical scrutiny.

I continued the work on dorsal, discovered the recessive phenotype and interpreted the phenotype postulating a gradient determining the dorsoventral axis. At that time, gradients were not widely accepted as mechanisms, in particular biochemists were highly sceptical, however the Tübingen influence made such models attractive to me.

On the one hand, we have people that say the aid system is so broken we need to throw it out. And on the other we have people who say the problem is that we need more aid. ... Both sides are right. And the problem is that neither side is listening to the other. Even more problematic, they're not listening to poor people themselves.

My parents were both physicians. The family physician type, not fancy researchers or anything like that. I picked up a sense of this idea that you do serve, you serve people actually. It’s an interesting thing. I don’t think they ever said that in any explicit term, but you could just see in terms of how — individual patients weren’t discussed — but just certain things were discussed, and you could see that that was important that you were doing something bigger than yourself. You were doing something for society. For some reason I was able to pick up on that, so I think that influenced. Especially my mother, who was a physician, who spent a lot of her hours in the office talking to her patients, and she would say talking was so important for many of her patients. Sometimes there weren’t even obvious things that a physician could do something about, but she said it meant a lot to them.