I lived at home and I cycled every morning to the railway station to travel by train to Johannesburg followed by a walk to the University, carrying sandwiches for my lunch and returning in the evening the same way.

Progress in science depends on new techniques, new discoveries and new ideas, probably in that order.

Innovation comes only from an assault on the unknown.

The modern computer hovers between the obsolescent and the nonexistent.

I set up a laboratory in the Department of Physiology in the Medical School in South Africa and begin to try to find a bacteriophage system which we might use to solve the genetic code.

Many have gone on to do important scientific work but all remember those wonderful times when we and our science were young and our excitement in meeting new challenges knew no bounds.

Living most of the time in a world created mostly in one's head, does not make for an easy passage in the real world.