If the structure that serves as a template (the gene or virus molecule) consists of, say, two parts, which are themselves complementary In structure, then each of these parts can serve as the mould for the production of a replica of the other part, and the complex of two complementary parts thus can serve as the mould for the production of duplicates of itself.

Nations keep agreements, keep their treaties so long as they continue to do them good.

I like people. I like animals, too-whales and quail, dinosaurs and dodos. But I like human beings especially, and I am unhappy that the pool of human germ plasm, which determines the nature of the human race, is deteriorating.

If the structure that serves as a template (the gene or virus molecule) consists of, say, two parts, which are themselves complementary In structure, then each of these parts can serve as the mould for the production of a replica of the other part, and the complex of two complementary parts thus can serve as the mould for the production of duplicates of itself.

Satisfaction of one's curiosity is one of the greatest sources of happiness in life.

In teaching, you do not want to COVER things, you want to UNCOVER them. The best way to get good ideas is to have lots of ideas.

Man's great power of thinking, remembering, and communicating are responsible for the evolution of civilization.