There Is No Subsitute For Hard Work.

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.

Invention Is 10% Inspiration And 90% Perspiration.

I Cannot Believe In The Immortality Of The Soul. No, All This Talk Of An Existence For Us, As Individuals, Beyond The Grave Is Wrong. It Is Born Of Our Tenacity Of Life - Our Desire To Go On Living - Our Dread Of Coming To An End.

Genius Defined: Of Inspiration 1% Percent, Of Perspiration, 99%.

I Failed My Way To Success.