Learning carries within itself certain dangers because out of necessity one has to learn from one's enemies.

You may not be interested in strategy, but strategy is interested in you.

Events can neither be regarded as a series of adventures nor strung on the thread of a preconceived moral. They must obey their own laws.

The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves.