Once you learn to quit, it becomes a habit.
A bird doesn't sing because it has an answer, it sings because it has a song.
Failure is not our only punishment for laziness; there is also the success of others.
Our greatest glory is not in never falling but in rising every time we fall.
What lies behind us and what lies before us are tiny matters compared to what lies within us.
I would prefer even to fail with honor than win by cheating.
If you paint in your mind a picture of bright and happy expectations, you put yourself into a condition conducive to your goal.
The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.
The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.
Identify your problems but give your power and energy to solutions
To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.
A man can't soar too high, when he flies with his own wings.
The greatest accomplishment is not in never falling, but in rising again after you fall.
Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.
Become a possibilitarian. No matter how dark things seem to be or actually are, raise your sights and see possibilities -- always see them, for they're always there.
Whatever the mind of man can conceive and believe, it can achieve.
Never look back unless you are planning to go that way.
When I'm inspired, I get excited because I can't wait to see what I'll come up with next.
Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.
Lend yourself to others, but give yourself to yourself.
Find out who you are. And do it on purpose.