twenty-seven years and one million words
I've finished my bike repair course, and it's made a big impact to the way I view my bike when I ride. I now know what all the sounds are, what they mean, and how to fix them. I also know exactly what a bike shop "tune up" is worth, and can do most of the repairs myself (e.g. changing a chain & cassette).
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, because there is no effort without error or shortcoming; 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.
—Theodore Roosevelt, Jr.