Thomas A. Edison

I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in read more

I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in connection with the electric light ... Yet in only two cases did my experiments prove the truth of my theory.

To have a great idea, have a lot of them.

To have a great idea, have a lot of them.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so read more

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever.

Restlessness and discontent are the necessities of progress.

Restlessness and discontent are the necessities of progress.