I am more of a sponge than an inventor. I absorb ideas from every source. I take half-matured schemes for mechanical development and make them practical. I am a sort of a middleman between the long-haired and impractical inventor and the hard-headed business man who measures all things in terms of dollars and cents. My principal business is giving commercial value to the brilliant but misdirected ideas of others.
Thomas A. EdisonOf the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.
Thomas A. EdisonI never once failed at making a light bulb. I just found out 99 ways not to make one.
Thomas A. Edison