I’ve never made a mistake. I’ve only learned from experience.

I readily absorb ideas from every source, frequently starting where the last person left off.

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

The chief function of the body is to carry the brain around.

I never did a day’s work in my life. It was all fun.

It is very beautiful over there!

There is no substitute for hard work.

Success is 90% perspiration and 10% inspiration!

To have a great idea, have a lot of them.

What you are will show in what you do.

Never get discouraged if you fail. Learn from it. Keep trying.

I find out what the world needs. Then I go ahead and try to invent it.

You can’t realize your dreams unless you have one, to begin with.

Good fortune often happens when opportunity meets with preparation.

Maturity is often more absurd than youth and very frequently is most unjust to youth.

To invent, you need a good imagination and a pile of junk.

The thing I lose patience with the most is the clock. Its hands move too fast.

We don’t know a millionth of one per cent about anything.

When you have exhausted all possibilities, remember this, you haven’t.