The Bell Curve by Herrnstein and Murphy

Hunters, Gathers and 20th Century American Culture
"Now I will tell you about culture. Culture is that garden. This is not a thing of nations. It is not about Goathe and yeshivas. Culture is the simple grass through which the wind blows sweetly and each grass blade bends softly to the caress of the wind. It is like a mother who would pick up her child and kiss it, with her tenderness that she gave birth to it. We don't see this anymore. In the present time we see nations. They are not natural outgrowings. Their roots are too harsh. They grew up too fast. …