1. A human act is an act that proceeds from deliberate free will and is proper to man as a rational being.
2. For an act to be considered human, it must be knowing, free, and voluntary. The agent must deliberately choose to perform the act with understanding of what they are doing.
3. Human acts can be classified based on their adequate cause (whether found in the will alone or perfected by other faculties) and their relation to reason (good, evil, or indifferent).