Genius is one percent inspiration, ninety-nine percent perspiration.

Inspiration can be found in a pile of junk. Sometimes, you can put it together with a good imagination and invent something.

Genius is 99% perspiration and 1% inspiration.

Invention is 1% inspiration and 99% perspiration

I have determined that there is no market for talking pictures

Genius defined: of inspiration 1% percent, of perspiration, 99%.