Upton Sinclair, ed. (18781968). The Cry for Justice: An Anthology of the Literature of Social Protest. 1915.
From the Gospel of John
IF a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen? And this commandment have we from him, that he who loveth God love his brother also.