Overheard : Comment about what is takes to be a competent person

Came across quote by Robert A. Heinlein on a blog post by Jacques Mattheij regarding a what a competent man should be able to do

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.