Note 2 — Chapter IX · Conclusion

"The world of modern intellectual life is in reality a white man's world. Few women and perhaps no blacks have entered this world in the fullest sense. To enter it in the fullest sense would be to be in it at every moment from the time of birth to the time of death, and to absorb it unconsciously and consciously, as the child absorbs language. When something like this happens we shall be in a position to judge of the mental efficiency of women and the lower races. At present we seem justified in inferring that the differences in mental expression between the higher and lower races and between men and women are no greater than they should be in view of the existing differences in opportunity." W. I. Thomas, "Sex and Society," p. 312.