We're all of us guinea pigs in the laboratory of God. Humanity is just a work in progress.

You travel across the country you visit departments you give talks you talk about the work at your laboratory - what's going on what the opportunities are there - you talk about your own research.

For years I had no time for exploratory travel.

I was strongly encouraged by a science teacher who took an interest in me and presented me with a key to the laboratory to allow me to work whenever I wanted.

In the Radiation Laboratory we count it a privilege to do everything we can to assist our medical colleagues in the application of these new tools to the problems of human suffering.

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.

Now a cholera epidemic was sweeping through Southeast Asia and south Asia in the early 1970s so I started medical school and I joined a laboratory to work on this.

I began the study of medicine impelled by a desire for knowledge of facts and of man. The resolution to do disciplined work tied me to both laboratory and clinic for a long time to come.

Put off your imagination as you put off your overcoat when you enter the laboratory. Put it on again as you put on your overcoat when you leave.

It is not only my laboratory and my place of work but also my home so that on the 30th October I was able to share my happiness immediately with my students and collaborators and at the same time with my wife and family.