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

Wisely, and slow. They stumble that run fast.

The difficulty is to try and teach the multitude that something can be true and untrue at the same time.

Of puns it has been said that those who most dislike them are those who are least able to utter them.

One of the great penalties those of us who live our lives in full view of the public must pay is the loss of that most cherished birthright of man's, privacy.

When something is important enough, you do it even if the odds are not in your favor.

Go on, get out. Last words are for fools who haven't said enough.

Don't take the wrong side of an argument just because your opponent has taken the right side.

Freedom is from within.

If everything isn't black and white, I say, 'Why the hell not?'

No one can make you feel inferior without your consent.

If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance.

Memory... is an internal rumour.

We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.

Pretty much, Apple and Dell are the only ones in this industry making money. They make it by being Wal-Mart. We make it by innovation.

A scientific man ought to have no wishes, no affections, - a mere heart of stone.

In terms of an identity, an identity reflects an individuality, by definition. And, if there is a quality present, it is recognizable and it can be named. If you can't name it, it means you don't recognize it.

Religion is like a knife: you can either use it to cut bread, or stick in someone's back.

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

Get off your butt and join the Marines!

The poor are prevented from thinking by the discipline of others, the rich by their own.