Most importantly, Keynes was a prolific scholar. His book encompassed such widely ranging topics as probably theory, monetary economics, and the economic consequences of the World War I peace treaty. His magnum opus, however, was the General Theory, which was described as "a work of profound obscurity, badly written and prematurely published". Yet the General Theory attacked the classical economists' contention that recession will automatically cure itself Keynes' analysis suggested that recession could easily spiral downward into a depression.Keynes claimed that modern capitalism contained no automatic mechanism which would propel the economy back towards full employment.