The three things that are most essential to achievement are common sense, hard work and stick-to-it-iv-ness.
Thomas A. EdisonI never once failed at making a light bulb. I just found out 99 ways not to make one.
Thomas A. EdisonI have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing.
Thomas A. EdisonGenius? 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.
Thomas A. EdisonI never pick up an item without thinking of how I might improve it. I never perfected an invention that I did not think about in terms of the service it might give others. I want to save and advance human life, not destroy it. I am proud of the fact that I never invented weapons to kill. The dove is my emblem.
Thomas A. Edison