Sixteen is an intensely troublesome age. You worry about little things, can’t pinpoint where you are in any objective way, become really proficient at strange, pointless skills, and are held in thrall by inexplicable complexes. As you get older, though, through trial and error you learn to get what you need, and throw out what should be discarded. And you start to recognize (or be resigned to the fact) that since your faults and deficiencies are well nigh infinite, you’d best figure out your good points and learn to get by with what you have.

—Haruki Murakami in What I Talk About When I Talk About Running (his memoirs)