" The fatigue of the climb was great but it is interesting to learn once more how much further one can go on one's second wind. I think that is an important lesson for everyone to learn for it should also be applied to one's mental efforts. Most people go through life without ever discovering the existance of that whole field of endeavor which we describe as second wind. Whether mentally or physically occupied most people give up at the first appearance of exhaustion. Thus they never learn the glory and the exhilaration of genuine effort... "