What I did not yet know so intensely was the hatred of the white American for the black, a hatred so deep that I wonder if every white man in this country, when he plants a tree, doesn't see Negroes hanging from its branches.
Now at 47, 48 I am expected to do ten times better work that I did when I was 24.
Human knowledge is dark and uncertain; philosophy is dark, astrology is dark, and geometry is dark.

