Do not tell me the problem is a difficult one. If it were not difficult, it would not be a problem

Useful manual labour, intelligently performed is the means per excellence for developing the intellect.

The onesure way to conciliate a tiger is to allow oneself to be devoured.

There is no knowledge that is not power.

Power consists in one's capacity to link his will with thepurpose of others, to lead by reason and a gift of cooperation.

Silenceis argument carried out by other means.

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.

Greatideas often receive violent opposition from mediocre minds.

To ask advice is in nine cases out of ten tout for flattery.

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.

Men are mortal, but ideas are immortal.

If anenemy is annoying you by playing well, consider adopting his strategy.