One of my favorites (also a favorite of my two-year-old's; he can sing almost all the verses). The singer is the legendary Luke Kelly (1940-1984). Enjoy and happy Labor Day.
Brothers, love is a teacher, but a hard one to obtain: learning to love is hard and we pay dearly for it. It takes hard work and a long apprenticeship, for it is not just for a moment that we must learn to love, but forever. (Fyodor Dostoyevsky, The Brothers Karamazov)