Discontent Is The First Necessity Of Progress.

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

Fooling Around With Alternating Currents Is Just A Waste Of Time. Nobody Will Use It, Ever. It's Too Dangerous . . . It Could Kill A Man As Quick As A Bolt Of Lightning. Direct Current Is Safe.

I've Realized That Most Of My Best Ideas Have Followed A Good Night's Sleep.

I Speak Without Exaggeration When I Say That I Have Constructed 3,000 Different Theories In Connection With The Electric Light, Each One Of Them Reasonable And Apparently Likely To Be True. Yet Only In Two Cases Did My Experiments Prove The Truth Of My Theory. My Chief Difficulty Was In Constructing The Carbon Filament... Every Quarter Of The Globe Was Ransacked By My Agents, And All Sorts Of The Queerest Materials Used, Until Finally The Shred Of Bamboo, Now Utilized By Us, Was Settled Upon.

I Try Not To Invent Things That People Don't Need.