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I take it that the good of mankind means the attainment, by every man, of all the happiness which he can enjoy without diminishing the happiness of his fellow men

Thomas Henry Huxley (1872). “More Criticisms on Darwin, and Administrative Nihilism”, p.79
I take it that the good of mankind means the attainment, by every man, of all the happiness which he can enjoy without diminishing the happiness of his fellow men