1: Why be a Stoic? -- The ancient Stoics: people and sources -- The ancient philosophical background -- An overview of Stoic ethics -- 2: Psychology -- Impressions and assent -- Belief and knowledge -- Impulses and emotions -- 3: Ethics -- Goods and indifferents -- Final ends -- Oikeiosis and others -- What makes an action befitting? -- Discovering the befitting: two models -- Discovering the befitting: a better model -- 4: Fate -- God and fate -- Necessity and responsibility -- The lazy argument -- The evolution of the will -- Taking stock.