David Hackett Fischer, The Great Wave: Price Revolutions and the Rhythm of History (New York: Oxford University Press, 1996), 101:

In theology this was the era of neo-Calvinism–the narrowest, darkest, bleakest, and most pessimistic form of Christianity that has ever been invented, more so even than the theology of Calvin himself…. In a later and happier age neo-Calvinism would make no sense at all, but in the early seventeenth century it seemed to fit the facts of the human condition.