The history of creation is but a succession of battles between amateurs of genius-inspired heretics- and orthodox professionals.

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.

The world has long observed that small acts of immorality, if repeated, will destroy character. It is equally manifest, though never said, that uttering nonsense and half-truth without cease ends by destroying Intellect

Grab a pen and put down some words - your name even - and a title: something to see, to revise, to carve, to do over in the opposite way

To denounce does not free the self from what it hates, any more than ignoring the past shuts off its influence.

In a large university, there are as many deans and executive heads as there are schools and departments. Their relations to one another are intricate and periodic; in fact, "galaxy" is too loose a term: it is a planetarium of deans with the President of the University as a central sun. One can see eclipses, inner systems, and oppositions.

The one thing that unifies men in a given age is not their individual philosophies but the dominant problem that these philosophies are designed to solve.