You'll never do a whole lot unless you're brave enough to try.
Knowing what's right doesn't mean much unless you do what's right.
Others have seen what is and asked why. I have seen what could be and asked why not.
If we want a free and peaceful world, if we want to make the deserts bloom and man grow to greater dignity as a human being-we can do it.
This is one small step for a man, one giant leap for mankind.
A man is but the product of his thoughts. What he thinks, he becomes.
No leader can be too far ahead of his followers.
The fishermen know that the sea is dangerous and the storm terrible, but they have never found these dangers sufficient reason for remaining ashore.
You're never as good as everyone tells you when you win, and you're never as bad as they say when you lose.
Climbing to the top demands strength, whether it is to the top of Mount Everest or to the top of your career.
The person who takes no chances generally has to take whatever is left when others are through choosing.
Truth can be stated in a thousand different ways, yet each one can be true.
I love those who can smile in trouble...
To give real service, you must add something which cannot be bought or measured with money.
Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.
Improvement makes strait roads, but the crooked roads without Improvement, are roads of Genius.
In winter, I plot and plan. In spring, I move.
All thinking men are atheists.
It is our choices...that show what we truly are, far more than our abilities.
The crisis of today is the joke of tomorrow.
Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.