Courage is the thing. All goes if courage goes.
The only way of finding the limits of the possible is by going beyond them into the impossible.
Focus on where you want to go, not on what you fear.
Some people regard discipline as a chore. For me, it is a kind of order that sets me free to fly.
If you get up in the morning and think the future is going to be better, it is a bright day. Otherwise, it's not.
You'll never get ahead of anyone as long as you try to get even with him.
I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.
I have a dream that one day little black boys and girls will be holding hands with little white boys and girls.
Character isn't something you were born with and can't change, like your fingerprints. It's something you weren't born with and must take responsibility for forming.
You are not here merely to make a living. You are here in order to enable the world to live more amply, with greater vision, with a finer spirit of hope and achievement. You are here to enrich the world, and to impoverish yourself if you forget the errand.
I'd rather be an optimist and a fool than a pessimist and right.
The starting point of all achievement is desire. Keep this constantly in mind. Weak desires bring weak results, just as a small amount of fire makes a small amount of heat.
People who say it cannot be done should not interrupt those who are doing it.
Defeat is not defeat unless accepted as a reality-in your own mind.
I don't know who my grandfather was; I'm much more concerned to know what his grandson will be.
You need a little bit of insanity to do great things.
One person with a belief is equal to a force of ninety-nine who have only interests.
Great things are not done by impulse, but by a series of small things brought together.
I may have had a lot of luck in my life, but I still need to find a challenge in the game.
Duty does not require any person to submit to the destruction of his personal ambitions and the right to live his own life in his own way.
Don't get set into one form, adapt it and build your own, and let it grow, be like water.