This document discusses the different types of persons under law - natural and artificial/juridical. Natural persons are human beings, while juridical persons are legal entities like corporations or organizations granted legal status. It outlines several factors that affect a person's legal rights and duties, such as age, sex, marriage status, mental capacity, citizenship status, and death. Juridical capacity refers to a person's basic legal qualification to hold rights, while capacity to act means the ability to perform legal acts; full civil capacity involves possessing both.