Science needs the intuition and metaphorical power of the arts, and the arts need the fresh blood of science ... Interpretation is the logical channel of consilient explanation between science and the arts. The arts ... also nourish our craving for the mystical.

If everyone agreed to become vegetarian, leaving little or nothing for livestock, the present 1.4 billion hectares of arable land (3.5 billion acres) would support about 10 billion people.

It's the technique, I think, of writing a novel that is difficult for a nonfiction writer.

The search for knowledge is in our genes. It was put there by our distant ancestors who spread across the world, and it's never going to be quenched.

By any reasonable measure of achievement, the faith of the Enlightenment thinkers in science was justified.

You are capable of more than you know. Choose a goal that seems right for you and strive to be the best, however hard the path. Aim high. Behave honorably. Prepare to be alone at times, and to endure failure. Persist! The world needs all you can give.

No barrier stands between the material world of science and the sensibilities of the hunter and the poet.