Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic

If I have exhausted the justifications, I have reached bedrock and my spade is turned. Then I am inclined to say: 'This is simply what I do.

That which cannot be said must not be said. That which cannot be said, one must be silent thereof.

In philosophy it is always good to put a question instead of an answer to a question. For an answer to the philosophical question may easily be unfair; disposing of it by means of another question is not.

Philosophy is like trying to open a safe with a combination lock: each little adjustment of the dials seems to achieve nothing, only when everything is in place does the door open.

He who lives in the present lives in eternity.

This is how philosophers should salute each other: ‘Take your time.