I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

Thomas Alva Edison

MistakesSoonerLaterPatent

To invent, you need a good imagination and a pile of junk.

Thomas Alva Edison

InventGoodImaginationPile...+1

Negative results are just what I want. They're just as valuable to me as positive results. I can never find the thing that does the job best until I find the ones that don't.

Thomas Alva Edison

NegativeResultsValuablePositive...+3

I find out what the world needs. Then I go ahead and try to invent it.

Thomas Alva Edison

FindWorldNeedsTry...+1

I am proud of the fact that I never invented weapons to kill.

Thomas Alva Edison

ProudFactInventedWeapons...+2

I start where the last man left off.

Thomas Alva Edison

StartLastManLeft Off