The unexamined life is not worth living.
You have power over your mind - not outside events. Realize this, and you will find strength.
It's kind of fun to do the impossible.
The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.
Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.
Hating people because of their color is wrong. And it doesn't matter which color does the hating. It's just plain wrong.
Human dignity consists in the role we must play in our own perfection. Taking a role in our own self-completion is the highest expression of our creativity.
Crave for a thing, you will get it. Renounce the craving, the object will follow you by itself.
The desire to reach for the stars is ambitious. The desire to reach hearts is wise.
If you are humble nothing will touch you, neither praise nor disgrace, because you know what you are.
My heroes are the ones who survived doing it wrong, who made mistakes, but recovered from them.
When you arise in the morning think of what a privilege it is to be alive, to think, to enjoy, to love ...
Perseverance is failing 19 times and succeeding the 20th.
To give real service, you must add something which cannot be bought or measured with money.
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.
I think nature's imagination Is so much greater than man's, she's never going to let us relax.
Imagination is everything. It is the preview of life's coming attractions.
We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.
We are all motivated by a keen desire for praise, and the better a man is, the more he is inspired by glory.
I will never be by violence constrained to do anything.
Do not look for approval except for the consciousness of doing your best.
