Robert Heinlein left behind a body of work with a bewildering diversity of imaginings and ideas. It would be difficult to reconcile the free love, communal interests of the novel Stranger in a Strange Land, with say, the martial authoritarianism of Starship Troopers, or the anarchic libertarianism of The Moon Is a Harsh Mistress. Indeed, doing so would be impossible. And there is little doubt this has much to do with why his readers appreciate his writing so much.