W.e.b. Du Bois said this quote

In a world where it means so much to take a man by the hand and sit beside him, to look frankly into his eyes and feel his heart beating with red blood; in a world where a social cigar or a cup of tea together means more than legislative halls and magazine articles and speeches,β€”one can imagine the consequences of the almost utter absence of such social amenities between estranged races, whose separation extends even to parks and streetcars.