This is not the age of pamphleteers. It is the age of the engineers. The spark-gap is mightier than the pen. Democracy will not be salvaged by men who talk fluently, debate forcefully and quote aptly.

The best therapy for emotional blocks to math is the realization that the human race took centuries or millennia to see through the mist of difficulties and paradoxes which instructors now invite us to solve in a few minutes.

With full responsibility for my words as a professional biologist, I do not hesitate to say that all existing and genuine knowledge about the way in which the physical characteristics of human communities are related to their cultural capabilities can be written on the back of a postage stamp.

It is not enough to show that drug A is better than drug B on the average. One is invited to ask, 'For which people ("& why") is drug A better than drug B, and vice versa? If drug A cures 40% and drug B cures 60%, perhaps the right choice of drug for each person would result in 100% cures.'

There has been no more revolutionary contribution than the one which the Hindus (Indians) made when they invented ZERO.

Mathematics is the language of size.

There is nothing particularly scientific about excessive caution. Science thrives on daring generalizations.