This document discusses Erik Erikson's stages of psychosocial development. It outlines the key conflicts or tensions that individuals face in each stage from infancy through childhood and how they are resolved. In each stage, success leads to healthy development of basic virtues like trust, autonomy, initiative or industry, while failure can result in weaknesses like mistrust, shame, guilt or inferiority. The document provides details on each stage, including the relevant ages, key tasks, and factors that promote versus undermine healthy resolution of the conflict. An overarching theme is that personality develops through an ongoing process of psychosocial challenges across the lifespan.