It is not the critic who counts
"It is not the critic who counts, not the man who points out how the strong man stumbled, or where the doer of deeds could have done better. The credit belongs to the man who is actually in the arena; whose face is marred by the dust and sweat and blood; who strives valiantly; who errs and comes short again and again; who knows the great enthusiasms, the great devotions and spends himself in a worthy cause; who at the best, knows in the end the triumph of high achievement, and who, at worst, if he fails, at least fails while daring greatly; so that his place shall never be with those cold and timid souls who know neither victory or defeat."
That's Theodore Roosevelt at the Sorbonne in 1910. It might as well be sub-titled "The Entrepreneur's Creed."
Here's a nicely formatted webpage highlighting the quote and with the whole speech:
Man in the Arena (from CITIZENSHIP IN A REPUBLIC) by Theodore Roosevelt
