Logical Positivism

Logical Positivism — also called logical empiricism — was a philosophical movement centered on the Vienna Circle in the 1920s and 1930s, committed to the view that meaningful statements are either analytic (true by definition) or empirically verifiable. On this criterion, traditional Metaphysics was not merely false but meaningless: sentences like 'The Absolute is beyond time' could be neither verified nor falsified, and therefore expressed no cognitive content at all.

The movement's intellectual lineage runs from Ernst Mach's radical empiricism through Russell and Wittgenstein's early logical analysis. Its principal figures — Rudolf Carnap, Moritz Schlick, Otto Neurath — sought to unify all legitimate knowledge under the methods of natural science and the syntax of formal logic, producing a philosophy of science that displaced speculative metaphysics entirely.

The program failed on its own terms. The verificationist criterion proved impossible to formulate precisely without either excluding legitimate theoretical science or admitting the metaphysical claims it was designed to ban. By the 1950s, even Carnap had retreated to a modest Pragmatism about linguistic frameworks. The movement's demise is itself a historical lesson: the attempt to draw a sharp line between sense and nonsense tends to find the line dissolving under examination. What survived was a permanent suspicion of ontological extravagance — and a generation of philosophers trained to demand that claims earn their meaning.