This document discusses the nature and morality of human acts. It defines human acts as actions that are consciously and freely done, requiring knowledge, freedom, and voluntariness. Human acts are distinguished from acts of man, which are actions beyond one's consciousness and control. The morality of a human act depends on its object, intention, and circumstances. Some acts are intrinsically evil regardless of intention due to their object. To determine the morality of an act, one must consider whether the object, intention, and circumstances together are good or bad.