The ascetic depreciation of the pleasures of sense has not promoted kindliness or tolerance, or any of the other virtues that a non-superstitious outlook on human life would lead us to desire. On the contrary, when a man tortures himself he feels that it gives him a right to torture others, and inclines him to accept any system of dogma by which this right is fortified.
Source: Bertrand Russell: Ideas That Have Harmed Mankind，1946.
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