Thedifficult part in an argument is not to defend one's opinion, but rather toknow it.

Folly is perennial and yet the human race has survived

I have learned through bitter experience the one supremelesson to conserve my anger, and as heat conserved is transmitted intoenergy, even so our anger controlled can be transmitted into a power that canmove the world.

All thingsat first appear difficult.

There is no knowledge that is not power.

When I dare to be powerful, to use my strength in theservice of my vision, then it becomes less and less important whether I amafraid.

The exercise of power is determined by thousands ofinteractions between the world of the powerful and that of the powerless, allthe more so because these worlds are never divided by a sharp line: everyonehas a small part of himself in both.

Icannot divine how it happens that the man who knows the least is the mostargumentative.

If we shake hands with icy fingures, it is because we have burnt them so horribly before.

Thereward for always listening when you'd rather be talking is wisdom.

A half truth is a whole lie.

Life is no brief candle- it's a splendid torch!