Chance fights ever on the side of the prudent.

There are no passengers on spaceship earth. We are all crew.

Man is the only creature that refuses to be what he is.

O Lord, help me to be pure, but not yet.

Your paradigm is so intrinsic to your mental process that you are hardly aware of its existence, until you try to communicate with someone with a different paradigm.

To cherish what remains of the Earth and to foster its renewal is our only legitimate hope of survival.

I like to listen. I have learned a great deal from listening carefully. Most people never listen.

I still find each day too short for all the thoughts I want to think, all the walks I want to take, all the books I want to read, and all the friends I want to see.

The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary.

The legacy of Democrats and Republicans approaches: Libertarianism by bankruptcy.