"Every man should make his son or daughter learn some useful trade or profession, so that in these days of changing fortunes of being rich to-day and poor tomorrow they may have something tangible to fall back upon. This provision might save many persons from misery, who by some unexpected turn of fortune have lost all their means."
P.T. Barnum, The Art of Money Getting; Golden Rules for Making Money
Still rings true, more so in these days. This mini-book was written by the "Master Showman"in the 1800's. Even though the prose is a touch archaic, many of his points are still extremely valid. Very worth the read!