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 A. Heinlein

That's quite the list. I think the conversation is more nuanced, especially since the quote seems so anti-specialization, but in general I think it's correct. Even so, none of these things are really specializations/ exclusive of each other.