Do The Thing And The

I've Never Made A Mistake. I've Only Learned From Experience.

We Have Merely Scratched The Surface Of The Store Of Knowledge Which Will Come To Us. I Believe That We Are Now, A-tremble On The Verge Of Vast Discoveries - Discoveries So Wondrously Important They Will Upset The Present Trend Of Human Thought And Start It Along Completely New Lines .

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

I Make More Mistakes Than Anyone Else I Know, And Sooner Or Later, I Patent Most Of Them.

Success Is 90% Perspiration And 10% Inspiration!