Our imagination is the only limit to what we can hope to have in the future.

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.

My interest is in the future because I am going to spend the rest of my life there.

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

We should all be concerned about the future because we will have to spend the rest of our lives there.

It is not a disgrace to fail. Failing is one of the greatest arts in the world.

Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it.

We need to teach the highly educated man that it is not a disgrace to fail and that he must analyze every failure to find its cause. He must learn how to fail intelligently, for failing is one of the greatest arts in the world.

The opportunities of man are limited only by his imagination. But so few have imagination that there are ten thousand fiddlers to one composer.

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

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.

If you want to kill any idea in the world, get a committee working on it.

Every time you tear a leaf off a calendar, you present a new place for new ideas and progress.

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

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

A person must have a certain amount of intelligent ignorance to get anywhere.

Every time you tear a leaf off a calendar, you present a new place for new ideas and progress.