In spite of his purely intellectual deficiencies, his influence was very great and very beneficent. ... His advocacy of equality for women in the end won almost world-wide acceptance. His book On Liberty remains a classic: although it is easy to point out theoretical defects, its value increases as the world travels farther and farther from his teaching. The present world would both astonish and horrify him; but it would be better than it is, if his ethical principles were more respected.
Source: Bertrand Russell: John Stuart Mill，1955.
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