就知道《自然辩证法》的价值了。
摘一段：
It is, therefore, from the history of nature and human society that the laws of dialectics are abstracted. For
they are nothing but the most general laws of these two aspects of historical development, as well as of
thought itself. And indeed they can be reduced in the main to three:
The law of the transformation of quantity into quality and vice versa;
The law of the interpenetration of opposites;
The law of the negation of the negation.
All three are developed by Hegel in his idealist fashion as mere laws of thought: the first, in the first part
of his Logic, in the Doctrine of Being; the second fills the whole of the second and by far the most
important part of his Logic, the Doctrine of Essence; finally the third figures as the fundamental law for
the construction of the whole system. The mistake lies in the fact that these laws are foisted on nature and
history as laws of thought, and not deduced from them. This is the source of the whole forced and often
outrageous treatment; the universe, willy-nilly, is made out to be arranged in accordance with a system of
thought which itself is only the product of a definite stage of evolution of human thought. If we turn the
thing round, then everything becomes simple, and the dialectical laws that look so extremely mysterious
in idealist philosophy at once become simple and clear as noonday.