Every creature is better alive than dead, men and moose and pine trees, and he who understands it aright will rather preserve its life than destroy it.

For the happiest life, days should be rigorously planned, nights left open to chance.

Life is what happens while you are busy making other plans.

He who has a why to live can bear almost any how.

Don't go around saying the world owes you a living. The world owes you nothing. It was here first.

To affect the quality of the day, that is the highest of arts.

I have a simple philosophy: Fill what's empty. Empty what's full. Scratch where it itches.

The main facts in human life are five: birth, food, sleep, love and death.

Life is something to do when you can't get to sleep.

March on. Do not tarry. To go forward is to move toward perfection. March on, and fear not the thorns, or the sharp stones on life's path.