Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.

Ideas are like fish. If you want to catch little fish, you can stay in the shallow water. But if you want to catch the big fish, you've got to go deeper.

The meaning of life is that it stops.

To love to read is to exchange hours of ennui for hours of delight.

The health of our planet depends on the choices we make in agriculture.