We're a planet of nearly six billion ninnies living in a civilization that was designed by a few thousand amazingly smart deviants.

Intelligence is quickness in seeing things as they are.

We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality.

Mother is far too clever to understand anything she does not like.

Women are brighter than men, that's true. But it should be kept very quiet or it ruins the whole racket.

The true test of intelligence is not how much we know what to do, but how we behave when we don't know what to do.

The intelligent man who is proud of his intelligence is like the condemned man who is proud of his large cell.

Intelligence is characterized by a natural incomprehension of life.

There must be something unique about man because otherwise, evidently, the ducks would be lecturing about Konrad Lorenz, and the rats would be writing papers about B. F. Skinner.

Intelligence in chains loses in lucidity what it gains in intensity.