Discontent is the first necessity of progress. Thomas A. Edison discontentnecessityprogress Change image and share on social
Waste is worse than loss. The time is coming when every person who lays claim to ability will keep the question of waste before him constantly. The scope of thrift is limitless. Thomas A. Edison abilitybadlyclaim Change image and share on social
To invent, you need a good imagination and a pile of junk. Thomas A. Edison goodimaginationinvent Change image and share on social
Results! Why, man, I have gotten a lot of results. I know several thousand things that won't work. Thomas A. Edison lotmanresult Change image and share on social
One might think that the money value of an invention constitutes its reward to the man who loves his work. But... I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success. Thomas A. Edison callconstitutecontinue share on social
There is no substitute for hard work. Thomas A. Edison hardsubstitutework Change image and share on social
Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success. Thomas A. Edison inventproofsale Change image and share on social
Genius is one percent inspiration and ninety-nine percent perspiration. Thomas A. Edison geniusinspirationninety Change image and share on social
The value of an idea lies in the using of it. Thomas A. Edison idealie Change image and share on social
I am proud of the fact that I never invented weapons to kill. Thomas A. Edison factinventkill Change image and share on social
