What's your favorite quote?

I've had a favorite quote since I was 15 years old. It speaks even louder to me today than it did 30-some-odd years ago:

All that is gold does not glitter,
Not all those who wander are lost.
The old that is strong does not wither,
Deep roots are not reached by the frost.
From the ashes a fire shall be woken,
A light from the shadows shall spring.
Renewed shall be blade that was broken,
The crownless again shall be king.
-- J.R.R. Tolkien