Thanks for pointing me to this. I've heard of this essay many times, but never read (or even skimmed) it. Now I'm interested in reading a biography of Emerson.
I really liked this section. I think it speaks to the current times, in particular.
Society never advances. It recedes as fast on one side as it gains on the other. It undergoes continual changes; it is barbarous, it is civilized, it is christianized, it is rich, it is scientific; but this change is not amelioration. For every thing that is given, something is taken. Society acquires new arts, and loses old instincts. What a contrast between the well-clad, reading, writing, thinking American, with a watch, a pencil, and a bill of exchange in his pocket, and the naked New Zealander, whose property is a club, a spear, a mat, and an undivided twentieth of a shed to sleep under! But compare the health of the two men, and you shall see that the white man has lost his aboriginal strength. If the traveller tell us truly, strike the savage with a broad axe, and in a day or two the flesh shall unite and heal as if you struck the blow into soft pitch, and the same blow shall send the white to his grave.