I had learned that science is a rewarding, active process of discovery, not the passive absorption of what others had discovered.

I had learned of Gertrude Stein's bon mot that medicine opened all doors. This prompted me, in different moods, to view my future life as literary psychiatrist, globe-trotting tropical disease specialist, or academic internist.

Science can improve lives in ways that are elegant in design and moving in practice.

Observation is a passive science, experimentation an active science.

When high school students ask to spend their afternoons and weekends in my laboratory, I am amazed: I didn't develop that kind of enthusiasm for science until I was 28 years old.

Anyone graduating from medical school in 1966 had first to fulfill military service before launching a career. Fiercely opposed to the Vietnam War, I sought to avoid it through an assignment to the Public Health Service.