Joseph McCabe,
The Human Origin of Morals — Chapter VI. The Christian Ethic
“ Nobody is ever going to love his neighbor as he loves himself. It can't be done. The human emotions are not made that way. An ideal ought to be something that can be realized. But we need not worry about this. You are, of course, aware that the Golden Rule of life in this sense—"Thou shalt love thy neighbor as thyself"—is a quotation from the Old Testament. ”
