Though it is true we are the highest and smartest animals, ospreys have eyes we have calculated to be sixty times more powerful and sophisticated than our own and that blindness, often caused by microscopic parasites that are themselves miracles of ingenuity, is one of the oldest and most tragic disorders known to man. And why award the superior eye (or in the case of cat or bat, also the ear) to the inferior species.

When I meet people who say - which they do all of the time - 'I must just tell you, my great aunt had cancer of the elbow and the doctors gave her 10 seconds to live, but last I heard she was climbing Mount Everest,' and so forth, I switch off quite early.

The cause of my life has been to oppose superstition. It's a battle you can't hope to win - it's a battle that's going to go on forever. It's part of the human condition.

Religion of every kind involves the promise that the misery and futility of existence can be overcome or even transfigured. One might suppose that the possession of such a magnificent formula, combined with the tremendous assurance of a benevolent God, would make a person happy. But such appears not to be the case.: unease and insecurity and rage seem to keep up with blissful certainty, and even to outpace it.

This huge and terrible industry [the slave trade] was blessed by all churches and for a long time aroused absolutely no religious protest. . . . In the eighteenth century, a few dissenting Mennonites and Quakers in America began to call for abolition, as did some freethinkers like Thomas Paine.

I leave it to the faithful to burn each other's churches and mosques and synagogues, which they can be always relied upon to do

A rule of thumb with humor; if you worry that you might be going too far, you have already not gone far enough. If everybody laughs, you have failed.