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.

I think being an atheist is something you are, not something you do.

I want to urge you very strongly to travel as much as you can, and to evolve yourself as an internationalist. It's as important a part of your education as a radical as the reading of any book.

Nonintervention does not mean that nothing happens. It means that something else happens.

Exceptional claims, require exceptional evidence.

It's normally agreed that the question 'How are you?' doesn't put you on your oath to give a full or honest answer.

What happens to the faith healer and the shaman when any poor citizen can see the full effect of drugs or surgeries, administered without ceremonies or mystifications? Roughly the same thing as happens to the rainmaker when the climatologist turns up, or to the diviner from the heavens when schoolteachers get hold of elementary telescopes.