This being granted, morality is evidently no more than a frivolous science, unless blended with policy and legislation: whence I conclude that, if philosophers would be of use to the world, they should survey objects from the same point of view as the...
De l'esprit; or, Essays on the mind. Transl. To Which are now prefixed, a ... - Page 121
by Claude Adrien Helvétius - 1807
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