Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic
Courage, not cleverness; not even inspiration, is the grain of mustard that grows up to be a great tree.
Whereof one cannot speak, thereof one must be silent.
The eternal life is given to those who live in the present.
A philosophical problem has the form: I don't know my way about.
The subject does not belong to the world; rather, it is a limit of the world.