Final answer:
According to Freud, successful progression through all stages of psychosexual development can lead to a healthy person capable of 'loving and working'. Freud believed that personality develops during early childhood through a series of stages. Each stage corresponds to an erogenous zone and if a stage is not properly resolved, it can result in fixation and the development of unhealthy personality traits.
Step-by-step explanation:
According to Freud, successful progression through all stages of psychosexual development can lead to a healthy person capable of 'loving and working'. Freud believed that personality develops during early childhood through a series of stages. Each stage corresponds to an erogenous zone and if a stage is not properly resolved, it can result in fixation and the development of unhealthy personality traits. Individuals who have successfully completed all stages without fixation are said to be well-balanced, healthy adults with mature sexual interests and the ability to form close relationships.