When we are victorious on a world scale I think we shall use gold for the purpose of building public lavatories in the streets of some of the largest cities of the world.
Vladimir LeninHuman knowledge is not (or does not follow) a straight line, but a curve, which endlessly approximates a series of circles, a spiral. Any fragment, segment, section of this curve can be transformed (transformed one-sidedly) into an independent, complete, straight line, which then (if one does not see the wood for the trees) leads into the quagmire, into clerical obscurantism (where it is anchored by the class interests of the ruling classes).
Vladimir Lenin