The Souls of Black Folk

the problem of the Twentieth Century is the problem of the color line.

二十世纪的问题就是种族界线的问题。

I have sought here to sketch, in vague, uncertain outline, the spiritual world in which ten thousand thousand Americans live and strive.

我试图在此勾勒出一个朦胧而不确定的轮廓，描绘千万美国人生活和奋斗的精神世界。