Defeat is not defeat unless accepted as a reality-in your own mind.
A liar will not be believed even when he speaks the truth.
You can't build a reputation on what you are going to do.
Never trust the advice of a man in difficulties.
Whatever you can do or dream you can, begin it. Boldness has genius, power and magic in it!
When all is said and done, more is said than done.
Waste no more time arguing about what a good man should be. Be one.
I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.
The question isn't who is going to let me; it's who is going to stop me.
Take things as they are. Punch when you have to punch. Kick when you have to kick.
Never tell all you know-not even to the person you know best.
It is greed to do all the talking but not to want to listen at all.
Don't hit at all if it is honorably possible to avoid hitting; but never hit soft!
After climbing a great hill, one only finds that there are many more hills to climb.
The great art of life is sensation, to feel that we exist, even in pain.
The people who were trying to make this world worse are not taking the day off. Why should I?
Courage isn't having the strength to go on - it is going on when you don't have strength.
Whether you think you can, or you think you can't - you're right.
Live as if you were to die tomorrow. Learn as if you were to live forever.
If you want a thing done well, do it yourself.
Whatever lifts the corners of your mouth, trust that.