I read 'Growing a Farmer' by Kurt Timmermeister (click here) last week which had this quote in it I really liked:
"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert Heinlein
I have not (yet) learned to conn (it means to steer or pilot -I had to look it up) a ship, and I'm not sure how gallantly I will die, but I agree with this thought. I would add to the list: knit or sew a garment, grow a garden, bake bread, and fix a car's engine -or at least live with someone who can.