Science and technology are what we can do; morality is what we agree we should or should not do.

In fact, nothing in science as a whole has been more firmly established by interwoven factual information, or more illuminating than the universal occurrence of biological evolution. Further, few natural processes have been more convincingly explained than evolution by the theory of natural selection, or as it has been popularly called, Darwinism.

The ideal scientist thinks like a poet and works like a bookkeeper

People would rather believe than know.

Overall, the human brain is the most complex object known in the universe - known, that is, to itself.

Humanity is exalted not because we are so far above other living creatures, but because knowing them well elevates the very concept of life.

An individual ant, even though it has a brain about a millionth of a size of a human being's, can learn a maze; the kind we use is a simple rat maze in a laboratory. They can learn it about one-half as fast as a rat.