Preface.

This writing attempts to organize the development of philosophy under the principle of the least amount of force.

Admittedly, this principle is initially a principle of inertia original: "Beharrung", which, regarding the soul, would read approximately as follows: The change that the soul imparts to its representations upon the arrival of new impressions is as small as possible; or, in other words, the content of our representations after a new act of apperception conscious perception/assimilation is as similar as possible to the content before it. However, insofar as the soul is subject to the conditions of organic existence and its requirements of purposiveness, the cited principle becomes a principle of development: The soul does not expend more force than necessary for an act of apperception, and in the case of a plurality of possible apperceptions, it gives preference to the one that achieves the same result with a smaller expenditure of force, or a greater result with the same expenditure of force.