Sigmund Freud's personality theory has caused a stir within the field since its inception. In his five stages of psychosexual development, he proposed key virtues to be developed, as well as problems that might arise if these virtues were not properly achieved. Your task is to give a brief overview of Freud's personality theory, and discuss how one's life can be affected later in life from not achieving the virtue at any TWO stages from his person theory. Provide an example for each stage discussed.