Science has promised us truth. It has never promised us either peace or happiness.

Whoever is winning the race will always seem to be invincible.

Whenever I hear anyone arguing for slavery, I feel a strong impulse to see it tried onhim personally.

History is the witness of the times, the light of truth.

We do not err because the truth is difficult to see. We err because this is more comfortable

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

Whenyou plant lettuce, if it does not grow well, you don't blame the lettuce. Youlook for reasons it is not doing well. It may need fertilizer, or more water,or less sun. You never blame the lettuce. Yet if we have problems with ourfriends or our family,

Nations get as good or as bad a government as they deserve.

The evolution from happiness to habit is one of death's best weapons.

If youare leaning over to starboard to balance the boat against the other guy'spropensity to lean too far to port, both of you are about to get wet.

Change meansmovement. Movement means friction. Only in the frictionless vacuum of anonexistent abstract world can movement or change occur without that abrasivefriction of conflict.

It isimpossible to defeat an ignorant man in argument.