Monday Motivation: Experience
C.S. Lewis' quote on the brutality of learning by experience: is there really any other option for learning? Think about it; do you truly know a thing without having experienced it?
You can intellectually know that you should keep your chin tucked when trading punches with someone, but until you get clocked in that chin for failing to do it, do you really know... do you really "grok" the idea?
In physical activities such as fighting, martial arts, etc., there's really no substitute for first hand, no... better yet... first face experience.