The truth is cruel, but it can be loved, and it makes free those who have loved it.

The man who would emancipate art from discipline and reason is trying to elude rationality, not merely in art, but in all existence.

Nietzsche said that the earth has been a madhouse long enough. Without contradicting him we might perhaps soften the expression, and say that philosophy has been long enough an asylum for enthusiasts.

Progress, far from consisting in change, depends on retentiveness. When change is absolute there remains no being to improve and no direction is set for possible improvement: and when experience is not retained, as among savages, infancy is perpetual.

Sanity is madness put to good use.

Bid, then, the tender light of faith to shine By which alone the mortal heart is led Unto the thinking of the thought divine.

Nothing is so irrevocable as mind.