A substance that makes you ill if you don't eat it.

If structure does not tell us anything about function, it means that we have not looked at it correctly.

Knowledge is a sacred cow, and my problem will be how we can milk her while keeping clear of her horns.

All living organisms are but leaves on the same tree of life. The various functions of plants and animals and their specialized organs are manifestations of the same living matter. This adapts itself to different jobs and circumstances, but operates on the same basic principles. Muscle contraction is only one of these adaptations. In principle it would not matter whether we studied nerve, kidney or muscle to understand the basic principles of life. In practice, however, it matters a great deal.

Discovery consists of looking at the same thing as everyone else and thinking something different.

Research is not a systematic occupation but an intuitive artistic vocation.

The American Cancer Society tried to ruin my research foundation.