Mark Helprin

Though builders may build, in the main they follow the plans of architects. Teachers teach, but they must have a text. Politicians govern, but only upon the flow of commentary that raises them up or casts them down.

To assert, as some have, that illegal immigrants do not depress wages because they do the jobs Americans refuse is the kind of nonsense economists speak when they strain to be counterintuitive. It is similar to saying that cheap imports do not hold down prices.