Behavior is determined by its consequences.

We shouldn't teach great books; we should teach a love of reading. Knowing the contents of a few works of literature is a trivial achievement. Being inclined to go on reading is a great achievement.

That's all teaching is; arranging contingencies which bring changes in behavior.

The alphabet was a great invention, which enabled men to store and to learn with little effort what others had learned the hard way-that is, to learn from books rather than from direct, possibly painful, contact with the real world.

We do not choose survival as a value, it chooses us.

But restraint is the only one sort of control, and absence of restraint isn't freedom. It's not control that's lacking when one feels 'free', but the objectionable control of force.

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.