About the book: year / “Summa Theologiae” (Summa theologiae, Summa theologica), the most significant philosophical work in its influence on the Christian world. The main work of the great Christian philosopher and theologian, the greatest scholastic and metaphysician Thomas Aquinas (1225–1274). He had a huge influence on the development of Orthodox “school theology”; his influence can hardly be overestimated. The entire “Summa Theology”, an excellent anthology on a whole array of issues of Christian faith and life. In many of his arguments (“immaculate conception” of the Virgin Mary; “the unconditional primacy of the pope”, etc.), Aquinas, quite unexpectedly for a Catholic scholastic, takes an Orthodox position. The entire “Summa...” consists of three parts. The work is a series of treatises, but the basis of the division is the questions of Thomas’s opponents, then an opinion contradicting these “objections” is given, which, however, does not seem sufficiently convincing or exhaustive to Aquinas, and only then (after the word “I answer”) the solution to the problem, which belongs to to the author. Contents Volume I • Volume II • Volume III • Volume IV • Volume V • Volume VI • Volume VII • Volume VIII • Volume IX • Volume X • Volume XI • Volume XII A Treatise on Habits in General Having considered human actions and passions, we come to the study of the principles of human actions, firstly, internal principles and, secondly, external principles. The internal principle is strength and skill, but since we have already discussed forces in the first part (77 ff), we only have to explore [skills; first we will consider] them as a whole; then we will consider the virtues and vices and the like pertaining to the habits which are the principles of human actions. As for skills in general, here we have to examine, firstly, the substance of skills; secondly, their subject; thirdly, the reason for their occurrence, growth and destruction; fourthly, their difference from each other. Under the first heading there are four points: 1) whether the skill is a quality; 2) is it a separate type of quality; 3) does the skill imply orderliness to the act; 4) about the need for skill.