<The roots of our character and temperament>                     We may sometimes notice, however, that the source of these sudden feelings is very deep-rooted within ourselves and somehow connected with our character and temperament. The development of our character and temperament is influenced by our life experiences within our environment, and it is also based on our heredity. Since we inherit our genetic makeup from our forebears (all our ancestral genetic information is within us), it is quite natural that we reflect our ancestors' qualities, including aspects of their various characters and temperaments.