A basic idea of the 18th century French Enlightenment was to learn from scientific progress how to achieve social progress towards an enlightened world. Unfortunately, the philosophes developed this profoundly important idea in a seriously defective form, and it is this defective form that came to be built into the institutional structure of academia in the early 20th century with the creation of departments of social science. We still suffer from it today. This article discusses four versions of the Enlightenment programme, each correcting mistakes of its predecessor, the upshot being that we need to bring about a revolution in the aims and methods of academic inquiry if the basic Enlightenment idea is to be properly implemented
