Immanuel Kant

Immanuel Kant spent most of his career as a respected but unremarkable lecturer in Königsberg, then published the Critique of Pure Reason in 1781, aged 57, after more than a decade of near silence. The Critique of Practical Reason (1788) and the Critique of Judgement (1790) followed. Almost everything for which he is studied today dates from these late decades, built on the long preparation of his teaching years.