His failures are as valuable as his successes: by misjudging one thing he conforms something else, even if at the time he does not know what that something else is. ↗
It is a mistake to suppose that men succeed through success; they much oftener succeed through failures. Precept, study, advice, and example could never have taught them so well as failure has done. ↗
Do not brood over your past mistakes and failures as this will only fill your mind with grief, regret and depression. Do not repeat them in the future. ↗