Nobody grows old merely by living a number of years. We grow old by deserting our ideals. Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul.
Respect the past in the full measure of its desserts, but do not make the mistake of confusing it with the present nor seek in it the ideals of the future.
"You are always a valuable, worthwhile human being, not because anybody says so, not because you''re successful, not because you make a lot of money, but because you decide to believe it and for no other reason."