Before youbuild a better mousetrap, make sure you have some mice out there.

I have never been able to conceive how any rational beingcould propose happiness to himself from the exercise of power over others.

He who truly knows has no occasion to shout

There is all the difference in the world between having something to say and havingto say something.

The cause of liberty becomes a mockery if the price to be paid is the wholesale destruction of those who are to enjoy liberty.

Most people suspended their judgement till somebody else has expressed his own and then they respect it.

The weaknesses of many make leader possible.

Silenceis a true friend that never betrays.

Far better to think historically, to remember the lessonsof the past. Thus, far better to conceive of power as consisting in part ofthe knowledge of when not to use all the power you have. Far better to be onewho knows that if you reserve the power not to

Sweet is pleasure after pain

Never answer a letter while you are angry.

Thoroughnesscharacterizes all successful men. Genius is the art of taking infinite pains.All great achievement has been characterized by extreme care, infinitepainstaking, even to the minutest detail.