Know thy self. I suppose one could say the essence of training has to do with that kind of honesty. Sincerity and recognizing the fact that "tough" is situational. I grew up with folks who looked at tough as the ability to dish out the pain, but I always viewed it as the ability to endure. I've known a number of tough guys who couldn't cope the moment they were shown their own weakness. In my experience, the wusses usually knew their shortcomings better than the toughies and as such always seemed to be better prepared when the "truth" of their world-view suddenly "bloody hurt" like hell.