Dmitri Ivanovich Mendeleev. (№ 262783)
Hypotheses and theories, doctrines and schemes in many areas of science - ready entire atlases maps. They throw - then it is necessary from the path to decline. In a forest of facts or in the ocean of thought is equally possible to get lost without theories and doctrines.
№ 262783 Added
MegaMozg 18-01-2017 / 21:39
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