Los mileuristas saben que se equivocaba

"When any expensive machine is erected, the  extraordinary work to be performed by it before it is worn out, it must be expected, will replace the capital laid out upon it, with at least the ordinary  profits. A man educated at the expense of much  labour and time to any of those employments which require extraordinary dexterity and skill, may be compared to one of those expensive  machines. The work which he learns to perform, it must be expected, over and above the usual wages of common labour, will replace to him the whole  expense of his education, with at least the ordinary profits of an equally valuable capital"

Wealth of Nations (Adam Smith)