A first principle not formally recognized by scientific methodologists: when you run into something interesting, drop everything else and study it.

It is a mistake to suppose that the whole issue is how to free man. The issue is to improve the way in which he is controlled.

...not everyone is willing to defend a position of 'not knowing.' There is no virtue in ignorance for its own sake.

The only geniuses produced by the chaos of society are those who do something about it. Chaos breeds geniuses. It offers a man something to be a genius about.

Give me a child and I'll shape him into anything.

I've often said that my rats have taught me much more than I've taught them.

Education is what survives when what has been learned has been forgotten.