Sir John Gurdon: He (Professor Michael Fischberg) gave me free choice. He said, “Here’s a problem for you, and this is how you might try to do it. Why don’t you try?” And as often happens, it didn’t work for a while. But he kept saying, “Well, try changing this, or try something different.” And suddenly, it suddenly worked. Not very obviously why, but it did. And so from then on, he was extremely enthusiastic. He used to say, “This is fantastic! Now, this is the way you should go.” And he left me entirely to myself. I mean he didn’t tell me how to do experiments. He just said, “This is what you should aim for, and what you’re doing is going very well, so carry on.” That was a very free way of teaching.