Be Brave As Your Fathers

The First Requisite Of Success Is The Ability To Apply Your Physical And Mental Energies To One Problem Without Growing Weary.

There Is No Limit To Which A Man Will Not Go To Avoid Thinking.

I Am Quite Correctly Described As 'more Of A Sponge Than An Inventor....'

Youth Doesn't Take Advice.

I Did Not Fail Two Thousand Times. I Merely Found Two Thousand Ways Not To Make A Lightbulb.