Necessary existence

Definition and stakes

Portrait of John Stuart Mill John Stuart Mill,  Essays on some unsettled Questions of Political Economy

“ Those laws or properties of human nature which appertain to man as a mere individual, and do not presuppose, as a necessary condition, the existence of other individuals (except, perhaps, as mere instruments or means) , form a part of the subject of pure mental philosophy. They comprise all the laws of the mere intellect, and those of the purely self-regarding desires. ”
Source: Gutenberg

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