I never view mistakes as failures. They are simply opportunities to find out what doesn't work.

What you are will show in what you do.

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

IF PARENTS PASS ENTHUSIASM ALONG TO THEIR CHILDREN, THEY WILL LEAVE THEM AN ESTATE OF INCALCULABLE VALUE

I was always afraid of things that worked the first time. Long experience proved that there were great drawbacks found generally before they could be got commercial; but here was something there was no doubt of.

A good idea is never lost. Even though its originator or possessor may die, it will someday be reborn in the mind of another.

I didn't fail 1000 times. The light bulb was an invention with 1000 steps.