By failing to prepare, you are preparing to fail.
Go for it now. The future is promised to no one.
Never complain and never explain.
Be gentle to all and stern with yourself.
Only the educated are free.
Begin to be now what you will be hereafter.
Wherever you are - be all there.
Know or listen to those who know.
If you've got a talent, protect it.
Well done is better than well said.
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.