We deem those happy who from the experience of life have learnt to bear its ills without being overcome by them.

Mistakes are, after all, the foundations of truth, and if a man does not know what a thing is, it is at least an increase in knowledge if he knows what it is not.

We are convinced that certain people have all the bad qualities we do not know in ourselves.

One must be able to let things happen.

Whenever you hear anyone talking about a cultural or even about a human problem, you should never forget to inquire who the speaker really is. The more general the problem, the more the person will smuggle his or her own personal psychology into the account he or she gives of it.

Creative power is mightier than its possessor.

We do not know whether Hitler is going to found a new Islam. He is already on the way; he is like Muhammad.