This chapter discusses individual differences in personality, attitudes, and ethical behavior. It defines personality as consistent patterns of behavior influenced by both heredity and environment. The "Big Five" personality factors describe traits on continua from stable to nervous, sociable to withdrawn, conscientious to careless, agreeable to rude, and open to dull. Specific traits like self-esteem and introversion/extraversion are also discussed in relation to job performance, satisfaction, and commitment. The chapter outlines how to instill moral management through selecting ethical employees and reinforcing ethics in culture and evaluations.