A stale article, if you dip it in a good, warm, sunny smile, will go off better than a fresh one that you've scowled upon.

There is only one difference between a madman and me. The madman thinks he is sane. I know I am mad.

I'm not a genius. I'm just a tremendous bundle of experience.

It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.

I sound my barbaric yawp over the rooftops of the world.

A book is a mirror: if an ape looks into it an apostle is hardly likely to look out.

There are no good girls gone wrong - just bad girls found out.

I don't say we all ought to misbehave, but we ought to look as if we could.

Too often we enjoy the comfort of opinion without the discomfort of thought.

I don't do drugs, I am drugs

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

Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.

The cloud is free only to go with the wind. The rain is free only in falling.

I will not let anyone walk through my mind with their dirty feet.

We are all now connected by the Internet, like neurons in a giant brain.

All men are prepared to accomplish the incredible if their ideals are threatened.

Good actions ennoble us, and we are the sons of our deeds.

In the intellectual order, the virtue of humility is nothing more nor less than the power of attention.

I want to put a ding in the universe.

You sort of start thinking anything's possible if you've got enough nerve.

Purity of heart is to will one thing.