Often war is waged only in order to show valor; thus an inner dignity is ascribed to war itself, and even some philosophers have praised it as an ennoblement of humanity, forgetting the pronouncement of the Greek who said, 'War is an evil in as much as it produces more wicked men than it takes away.'

If justice perishes, human life on Earth has lost its meaning.

All our knowledge begins with the senses...

Human reason is by nature architectonic.

It is difficult for the isolated individual to work himself out of the immaturity which has become almost natural for him.

Three things tell a man: his eyes, his friends and his favorite quotes

By a lie a man throws away and, as it were, annihilates his dignity as a man. A man who himself does not believe what he tells another ... has even less worth than if he were a mere thing. ... makes himself a mere deceptive appearance of man, not man himself.