Those who imagine that the world is against them have generally conspired to make it true.

History repeats itself, but in such cunning disguise that we never detect the resemblance until the damage is done.

The two words 'information' and 'communication' are often used interchangeably, but they signify quite different things. Information is giving out; communication is getting through.

Sometimes the best, and only effective, way to kill an idea is to put it into practice.

Self-discipline without talent can often achieve astounding results, whereas talent without self-discipline inevitably dooms itself to failure.

Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable.

The real danger is not that computers will begin to think like men, but that men will begin to think like computers.