Enthusiasm... the sustaining power of all great action.

All men are prepared to accomplish the incredible if their ideals are threatened.

Only those with no memory insist on their originality.

There's real poetry in the real world. Science is the poetry of reality

When the student is ready, the teacher will appear.

Pain is inevitable. Suffering is optional.

Hope is like the sun, which, as we journey toward it, casts the shadow of our burden behind us.

I do not argue with obstinate men. I act in spite of them.

Remember upon the conduct of each depends the fate of all.

Worry is the interest paid by those who borrow trouble.

The joke of our time is the suicide of intention.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

I used to desire many, many things, but now I have just one desire, and thats to get rid of all my other desires.

There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered.

The cure for boredom is curiosity.There is no cure for curiosity.

I believe today that my conduct is in accordance with the will of the Almighty Creator

One of the advantages of being disorderly is that one is constantly making exciting discoveries.

Purity of heart is to will one thing.

The American people should be made aware of the trend toward monopolization of the great public information vehicles and the concentration of more and more power over public opinion in fewer and fewer hands.

I have great faith in fools; self-confidence my friends call it.

A hero cannot be a hero unless in a heroic world.