" value,’ has two factors for a human being: first, what he can do with a thing, its use to him . . . and second, what he must do to get it, its cost to him. There is an old song which asserts ‘the best things in life are free.’ Not true! Utterly false! This was the tragic fallacy which brought on the decadence and collapse of the democracies of the twentieth century; "

― Robert A. Heinlein , Starship Troopers