There Is Always A Better

My Success Is Due More To My Ability To Work Continuously On One Thing Without Stopping Than To Any Other Single Quality.

Nothing That's Good Works By Itself, You've Got To Make The Damn Thing Work.

I Have Not Failed. I've Just Found 10,000 Ways That Won't Work.

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.

I Never Pick Up An Item Without Thinking Of How I Might Improve It.