The document discusses temperament, which refers to innate traits determined at conception that unconsciously influence behavior. Temperament provides both strengths and weaknesses in individuals and makes each person uniquely distinguished. It describes the phlegmatic temperament specifically, noting its strengths include being easygoing, pleasant, and a good listener, while weaknesses can include dampening enthusiasm, avoiding responsibility, and being indecisive. The document stresses that while temperament is innate, the holy spirit can help people overcome weaknesses and improve strengths through cooperation.