There are three creative ideas which, each in its turn, have been central to science. They are the idea of order, the idea of causes, and the idea of chance.

In the moment of appreciation we live again the moment when the creator saw and held the hidden likeness.

Science is the acceptance of what works and the rejection of what does not. That needs more courage than we might think.

Certainty ends inquiry.

Science is a tribute to what we can know, although we are fallible.

The world is made up of people who never quite get into the first team and who just miss the prizes at the flower show.

Sex was invented as a biological instrument by (say) the green algae. But as an instrument in the ascent of man which is basic to his cultural evolution, it was invented by man himself.