If you think you can do it, you can.
Wherever you are - be all there.
Well done is better than well said.
To know oneself, one should assert oneself.
Expect problems and eat them for breakfast.
By failing to prepare, you are preparing to fail.
If you can dream it, you can do it.
What you do today can improve all your tomorrows.
Be kind whenever possible. It is always possible.
Be thine own palace, or the world's thy jail.
The answer to old age is to keep one's mind busy and to go on with one's life as if it were interminable. I always admired Chekhov for building a new house when he was dying of tuberculosis.