The road to success is wherever people need another road.

The most valuable lesson man has learned from his dog is to kick a few blades of grass over it and move on.

Every great artist raises art to a science, and every great scientist raises science to an art, hence we have Michelangelo's David and Einstein's Theory of Relativity.

You can't postpone sorrow, so why would you postpone happiness?

There is always sufficient reason for despair, but there is never sufficient purpose.

Now and then it's good to list all the things you regularly do for which there was once a good reason.

Every day is conquerable by its hours, and every hour by its minutes.