I value self-discipline, but creating systems that make it next to impossible to misbehave is more reliable than self-control.
Well, I love tattoos and have been drawing them on my binders in school since I was little.
A musician cannot move others unless he too is moved. He must of necessity feel all of the affects that he hopes to arouse in his audience, for the revealing of his own humour will stimulate a like humour in the listener.