Common sense needs constant reappraisal.

Scientific research can reduce superstition by encouraging people to think and view things in terms of cause and effect.

I know quite certainly that I myself have no special talent; curiosity, obsession and dogged endurance, combined with self-criticism, have brought me to my ideas.

Only a very dull man spells a word the same way twice.

Cherish the questions, for the answers keep changing.

There is no scientific antidote, only education. You've got to change the way people think. I am not interested in disarmament talks between nations . . . What I want to do is to disarm the mind. After that, everything else will automatically follow. The ultimate weapon for such mental disarmament is international education.

Marvellous, what ideas the young people have these days. But I don't believe a word of it.