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 age range and behaviors that promote healthy resolution of conflicts versus those that may cause problems. An overarching theme is that personality develops through an ongoing process of social interaction and adaptation across one's lifespan.