Genius? Nothing! Sticking to it is the genius! Any other bright-minded fellow can accomplish just as much if he will stick like hell and remember nothing that's any good works by itself. You've got to make the damn thing work!...I failed my way to success.

The perils of overwork are slight compared with the dangers of inactivity.

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 have always consistently opposed high-tension and alternating systems of electric lighting...not only on account of danger, but because of their general unreliability and unsuitability for any general system of distribution.

So far as the religion of the day is concerned, it is a damned fake ... Religion is all bunk.

Of all my inventions, I liked the phonograph best

There is far more opportunity than there is ability.