The German philosopher and political theorist Georg Wilhelm Friedrich Hegel (1770-1831) said that “All that is real is reasonable, and all that is reasonable is real.” Frederick Engels, the collaborator and supporter of Karl Marx, took this to imply that “the value of a social or political phenomenon is its transitoriness,” as Austin Lewis wrote in the introduction to “Feuerbach: the Roots of Socialist Philosophy” (1919) by Engels.