Featured in the premiere issue of O: The Oprah Magazine and on Oprah's "Favorite Things 2000" segment, The Four Agreements reveals the source of self-limiting beliefs that rob people of joy and create needless suffering. Based on ancient Toltec wisdom, the Four Agreements -- be impeccable with your word, don't take anything personally, don't make assumptions, always do your best -- offer a powerful code of conduct that can rapidly transform life into a new experience of freedom, love, and true happiness.