ABSTRACT
The "First Principles," "categories of human thought," and the natural-science theories rise and decline in their acceptability, this is equally true of all the theories concerning man, culture, psychology, and anthropology—and the humanities, including philosophy, ethics, and law. Not only do the first principles and the categories of human thought fluctuate, but also almost all of the scientific theories of a more or less general nature. Some of these fluctuations probably proceed independently from main variables. The fluctuation of scientific theories is given by the increase and decrease of the "scientific" prestige, and acceptance of the rival theories of mechanism and vitalism, in the field of biology. Mechanistic theories maintain that life is a special phenomena of matter. So that the organism is merely a dynamic structure which is subject to physicochemical principles without the significant intervention of any force or action which is not appropriate data for the investigations of physics and chemistry.
