Pessimism, when you get used to it, is just as agreeable as optimism.

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

I hold it to be a proof of great prudence for men toabstain from threats and insulting words toward an enemy, for neither ...diminishes the strength of the enemy; but the one makes him more cautious,and the other increases his hatred of you and makes him

Nothing in life is to be feared. It is only to be understood.

Silenceis foolish if we are wise, but wise if we are foolish.

To rule is not so much a question of the heavy hand as the firm seat.

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

Thewise man, even when he holds his tongue, says more than the fool when hespeaks.

Sciencecannot resolve moral conflicts, but it can help to more accurately frame thedebates about those conflicts.

Diseases are Tax on the pleasure.

Power corrupts the few, while weakness corrputs the many.

You've gotto know when to hold 'em, know when to fold 'em know, when to walk away, knowwhen to run.