"Without Keynes, government budgets would have become unbalanced, as they did before Keynes, during periods of depression and war. Without Keynes, governments would have varied the rate of money creation over time and place, with bad and good consequences. Without Keynes, World War II would have happened, and the economies of Western democracies would have been pulled out of the lingering stagnation of the 1930s. Without Keynes, substantially full employment and an accompanying inflationary threat would have described the postwar years. But these events of history would have been conceived and described differently, then and now, without the towering Keynesian presence. Without Keynes, the proclivities of ordinary politicians would have been held in check more adequately in the 1960s and 1970s. Without Keynes, modern budgets would not be quite so bloated, with the threat of more to come, and inflation would not be the clear and present danger to the free society that it has surely now become. The legacy or heritage of Lord Keynes is the putative intellectual legitimacy provided to the natural and predictable political biases toward deficit spending, inflation, and the growth of government."
January 1, 1970
https://en.wikiquote.org/wiki/John_Maynard_Keynes