I never failed. It just didn't work 10,000 times.

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

The only time I really become discouraged is when I think of all the things I would like to do and the little time I have in which to do them.

I never did anything worth doing by accident, nor did any of my inventions come indirectly through accident, except the phonograph. No, when I have, fully decided that a result is worth getting, I go about it, and make trial after trial, until it comes.

We haven't failed. We now know a thousand things that won't work, so we are much closer to finding what will.

Success is based on imagination plus ambition and the will to work.

I think work is the world's greatest fun.