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

Men build society and society builds men.

I may say that the only differences I expect to see revealed between the behavior of the rat and man (aside from enormous differences of complexity) lie in the field of verbal behavior.

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.

I will be dead in a few months. But it hasn't given me the slightest anxiety or worry. I always knew I was going to die.

At this very moment enormous numbers of intelligent men and women of goodwill are trying to build a better world. But problems are born faster than they can be solved.

Must we wait for selection to solve the problems of overpopulation, exhaustion of resources, pollution of the environment and a nuclear holocaust, or can we take explicit steps to make our future more secure? In the latter case, must we not transcend selection?