Saul Mcleod wrote an article on the stages of development of Erick Erikson and he wrote that in the final stage, people are faced with what we calls it “ego integrity versus ego integrity.” Despair” which in turn leads to wisdom. He explains: “As we age (65+) and become senior citizens, we tend to slow down our productivity and explore retirement life. It is during this time that we contemplate our achievements and are able to develop our integrity if we see ourselves as leading a successful life. Parisi Jeanine looked at Ericson's final step and composed a detailed definition of wisdom that includes "wisdom involves investigating difficult or complex problems, applying prior knowledge, and making sound judgments and executable, often with the aim of achieving a common good. Saul Mcleod and Parisi Jeanine argue that the sense of wisdom is not obtained in the early stages of life, but rather in the later stages of life, during our old age. This is an important point because it demonstrates that wisdom is something that is only obtained with old age and which in turn leads the younger generation to respect it..