What is called conscience, that is to say, the unreasoning and more or less unconscious acceptance of precepts learnt in early youth, causes men still to feel that whatever the conventions prohibit is wrong, and this feeling may persist in spite of intellectual convictions to the contrary. It thus produces a personality divided against itself, one in which instinct and reason no longer go hand in hand, but instinct has become trivial and reason has become anaemic.
Source: Marriage and Morals, 1929.
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