Système de logique déductive et inductive : exposé des principes de la preuve et des méthodes de recherche scientifique

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.