The utopian is generally regarded as a harmless visionary, of course, whose system of thought suffers largely from a naivete about things as they really are. In this work, Thomas Molnar disputes this view and shows that the utopian thinker can be (and often has been) extremely dangerous. Thus it may surprise many that Molnar sees Teilhard de Chardin and Karl Marx sharing the same ideological umbrella, despite the theological differences between them...