Self-contempt, however vague, sharpens our eyes for the imperfections of others. We usually strive to reveal in others the blemishes we hide in ourselves.

Eric Hoffer (1902-1983) American writer, philosopher, longshoreman

True Believer: Thoughts on the Nature of Mass Movements, Part 3, ch. 14, § 100 (3.14.100) (1951)
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