It has been usual for men to think and to say, "Many men are slaves because one is an oppressor; let us hate the oppressor." Now, however, there is among an increasing few a tendency to reverse this judgment, and to say, "One man is an oppressor because many are slaves; let us despise the slaves." The truth is that oppressor and slave are cooperators in ignorance, and, while seeming to afflict each other, are in reality afflicting themselves.

James Allen (As A Man Thinketh, 1902)