One of my early mentors inspired me to restart, after each painful management lesson, by paraphrasing the following excerpt from Teddy Roosevelt’s 1915 speech at the Sorbonne.
“It is not the critic who counts; not the one who points out how the strong stumbles, or where the doer of deeds could have done them better. The credit belongs to the one who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends oneself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if one fails, at least fails while daring greatly, so that one’s place shall never be with those cold and timid souls who neither know victory nor defeat.”