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Our moral virtues benefit mainly other people; intellectual virtues, on the other hand, benefit primarily ourselves; therefore the former make us universally popular, the latter unpopular.

Arthur Schopenhauer, E. F. J. Payne (1974). “Parerga and Paralipomena: Short Philosophical Essays”, p.341, Oxford University Press
Our moral virtues benefit mainly other people; intellectual virtues, on the other hand, benefit primarily ourselves; therefore the former make us universally popular, the latter unpopular.