Maxims in times of danger are useless, experience is incommunicable. The knotted strands of life, desire, assumptions, and moral codes cannot be unsnarled; they can only be cut, which is what happens when an air raid occurs, with a silencing fortissimo like the finale of a Beethoven symphony.

To watch a football game is to be in a prolonged neurotic doubt as to what you're seeing. It's more like an emergency happening at a distance than a game. I don't wonder the spectators take to drink.

The reason teaching has to go on is that children are not born human; they are made so.

The test and the use of man's education is that he finds pleasure in the exercise of his mind.

I have always been - I think any student of history almost inevitably is - a cheerful pessimist.

Out of man's mind in free play comes the creation Science. It renews itself, like the generations, thanks to an activity which is the best game of homo ludens: science is in the strictest and best sense a glorious entertainment.

Democracy, to maintain itself, must repeatedly conquer every cell and corner of the nation. How many of our public institutions and private businesses, our schools, hospitals, and domestic hearths are in reality little fascist states where freedom of speech is more rigorously excluded than vermin?