Personal dignity is to be measured with the yardstick of one's conscience, not with that of other people's judgement.

When you would suffocate or ignore dissent, remember how many times you dissented.

Unlike money, hope is all: for the rich as well as for the poor.

As long as his strength permits, the poor mortal must always climb new mountains.

Secret thoughts are only half free: they fly undisturbed in the skies of the inner freedom, but they can never leave them.

It is certainly a good thing always to forgive with generosity, but it is no doubt just never to forget the wrongs received: they belong to the route that leads to inner maturity.

Sometimes true tolerance requires an extraordinary strength, which we are often too weak to exercise.