F. Bacon, Comenius, Marx, Engels, Otto Hausner

Read what went on between Marx and Engels, observe the peculiar configuration of Marx's mind, and remember at the same time what I have told you of the relationship between these two individuals in the 8th–9th century, and you will find a new light falling upon every sentence written by Marx and Engels. You will not be in danger of saying, in abstract fashion: This thing in history is due to this cause, and the other to the other cause. Rather will you see the human beings who carry over the past into another age, in such a way that although admittedly it appears in a somewhat different form, there is nevertheless a certain similarity.