Système de logique déductive et inductive exposé des principes de la preuve et des méthodes de recherche scientifique. Tr. sur la 6. éd

John Stuart Mill (1806–1873) received one of the most intense educations ever recorded: his father taught him Greek at three and Latin at eight, and by his teens he was writing on economics. At twenty he fell into a deep depression and found his way out through the poetry of Wordsworth, an experience that taught him the value of feeling alongside reason.

He worked for thirty-five years at the East India Company, wrote on logic, economics and politics, and shared his intellectual life with Harriet Taylor, whom he married in 1851. As a Member of Parliament he proposed votes for women in 1867. His On Liberty, Utilitarianism and The Subjection of Women are still at the centre of debate.