I am not ashamed to confess that I am ignorant of what I do not know.
Anything that makes weak - physically, intellectually and spiritually, reject it as poison.
No flying machine will ever fly from New York to Paris.
As long as we believe in absurdities we shall continue to commit atrocities.
By desiring little, a poor man makes himself rich.
When one door is closed, don't you know that many more are open
I don't watch television, I think it destroys the art of talking about oneself.
That which costs little is less valued.
Don't tell me the moon is shining; show me the glint of light on broken glass.
In the United States today, we have more than our share of the nattering nabobs of negativism.
A diplomat is a man who always remembers a woman's birthday but never remembers her age.
Anyone who attempts to generate random numbers by deterministic means is, of course, living in a state of sin.
Experience without theory is blind, but theory without experience is mere intellectual play.
If you've got them by the balls their hearts and minds will follow.
When something is important enough, you do it even if the odds are not in your favor.
The future is something which every one reaches at the rate of sixty minutes an hour, whatever he does, whoever he is.
Purity of heart is to will one thing.
How lucky I am to have something that makes saying goodbye so hard.
The only thing worse than being blind is having sight but no vision.
The true test of a man's character is what he does when no one is watching.
There's real poetry in the real world. Science is the poetry of reality