Those who would repeat the past must control the teaching of history.
All proofs inevitably lead to propositions which have no proof! All things are known because we want to believe in them.
Any man who retreats into a cave which has only one opening deserves to die.
The best contribution one can make to humanity is to improve oneself.
There are problems in this universe for which there are no answers. Nothing. Nothing can be done.
There is no escape - we pay for the violence of our ancestors.