[T]he policy or advantage of [immigration] taking place in a body (I mean the settling of them in a body) may be much questioned; for, by so doing, they retain the Language, habits and principles (good or bad) which they bring with them. Whereas by an intermixture with our people, they, or their descendants, get assimilated to our customs, measures and laws: in a word, soon become one people. ~George Washington, letter to John Adams — 1794
