Abstract
Immediately after the publication of Darwin's book on the origin of species, Engels, having familiarized himself with it, wrote to Marx on December 12, 1859: "All in all, Darwin, whom I am reading right now, is superb. Teleology had hitherto not yet been destroyed in one of its aspects, and now this has been done. Moreover, hitherto there has never been so sweeping an attempt to prove historical development in nature, especially with such success." Soon Marx enlarged upon the evaluation of Darwinism. In his letter of December 19, 1860, he commented that this theory "provides a foundation in natural history for our views." It is therefore no accident that Engels, in developing the principles of dialectical materialism and problems of the dialectics of nature, interested himself so deeply and comprehensively in the theory of evolution