Logic is a system whereby one may go wrong with confidence.

You can't have a better tomorrow if you are thinking about yesterday all the time.

High achievement always takes place in the framework of high expectation.

An inventor is simply a fellow who doesn't take his education too seriously.

Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.

A problem well stated is a problem half-solved.

You will never stub your toe standing still. The faster you go, the more chance there is of stubbing your toe, but the more chance you have of getting somewhere.

The only time you mustn't fail is the last time you try.

here is a great difference between knowing a thing and understanding it. You can know a lot and not really understand anything.

The world hates change, yet it is the only thing that has brought progress.

If you're doing something the same way you have been doing it for ten years, the chances are you are doing it wrong.

But if you have big ideas you have to use big words to express them, haven't you?

Assassination is almost always unthinkable to moral, thinking men until after a holocaust has come and gone.

I don't like places or people either that haven't any faults. I think that a truly perfect person would be very uninteresting.

From the desert I come to thee, On a stallion shod with fire; And the winds are left behind In the speed of my desire.

I learned to trust the threats of enemies before the promises of friends.

Mud and water and the stumps of trees. In every direction that was all there was. Bodies fell, but the trees died standing up.

Sell before the holidays. Stock prices tend to rise on the last trading day before major holidays.

To be a man you've gotta beat the man.

I'm just enjoying life more and thinking about the future.

To play great music, you must keep your eyes on a distant star.