I unfortunately contracted tuberculosis at the age of sixteen and had to take a two-year break and receive treatment at home before I resumed my study at the private Ningbo Xiaoshi High School (1948–1950) and Ningbo High School (1950–1951). This experience led me to make a decision to choose medical research for my advanced education and career – if I could learn and have (medical) skills, I could not only keep myself healthy but also cure many other patients.

The two alternatives left then to us were either to emigrate to the United States, or to pursue some activity that needed neither support nor connection with the outside Aryan world where we lived. My family chose this second alternative. I then decided to build a small research unit at home and installed it in my bedroom. My inspiration was a 1934 article by Viktor Hamburger reporting on the effects of limb extirpation in chick embryos. My project had barely started when Giuseppe Levi, who had escaped from Belgium invaded by Nazis, returned to Turin and joined me, thus becoming, to my great pride, my first and only assistant.

I don’t think I could. Of course I’m saying this on American soil. I’m facing a few more months of work in this city, but at the end of it, I will be returning to South Africa. I would like to believe that if for some reason the situation deteriorated to the point where I was told, “If you leave South Africa, you can never come back,” I’d stay there. There were periods in my life when I could have been seduced away. I am incredibly fortunate that the government took away my passport at the point when I was most open to seduction. With my passport gone, I could have left on a one-way ticket. But the issue was so starkly highlighted that I had no problem in saying, “No.”

Well, then of course, came the disaster in 1975, when my wife and my youngest daughter were flying into the Nepal hills where I was building a hospital and their plane crashed and they were killed. And this certainly, for me, was an absolute disaster, really because the two people that meant most to me in life had been killed in one fell swoop. It did take me quite a number of years to get over it. I found the only way to deal with it was to carry on very energetically, doing the things that we had all been doing together, which was largely building schools and things for the mountain people. Although, people used to say to me, “Time is the great healer,” certainly for the first two years I simply didn’t accept this. But, time was a great healer and after the years passed, the memories still remain. But, I think quite a lot of the pain tends to fade a little bit, and life did become a little bit easier.

I did boxing because I needed to channel the pain. I did karate because I was being beaten up and I wanted to be able to defend myself.