It is man that makes truth great, not truth that makes man great.

It is always advisable to perceive clearly our ignorance.

It is a cliche that most cliches are true, but then like most cliches, that cliche is untrue.

Everybody is ignorant, only on different subjects.

Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.

In order to change the world, you have to get your head together first

As our case is new, we must think and act anew.

Men are not prisoners of fate, but only prisoners of their own minds.

The place where you made your stand never mattered. Only that you were there...and still on your feet.

Generosity is giving more than you can, and pride is taking less than you need.

The difference between stupidity and genius is that genius has its limits.

You can be rich in spirit, kindness, love and all those things that you can't put a dollar sign on.

Learn from the mistakes of others. You can never live long enough to make them all yourself.

Sometimes one creates a dynamic impression by saying something, and sometimes one creates as significant an impression by remaining silent.

Courage is resistance to fear, mastery of fear - not absence of fear.

Better mad with the rest of the world than wise alone.

Never argue with an idiot. They drag you down to their level and then beat you with experience.

Nobody has the power to take two steps together; you can take only one step at a time.

Everything excellent is as difficult as it is rare.

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

There is nothing more uncommon than common sense.