Introduction / A. A. Long -- I. Phantasia Kataleptike / F. H. Sandbach -- II. Ennoia and Prolepsis / F. H. Sandbach -- III. Categories and their Uses / J. M. Rist -- IV. Grammar and Metaphysics in the Stoa / A. C. Lloyd -- V. Language and Thought in Stoicism / A. A. Long -- VI. Oikeiosis / E. G. Pembroke -- VII. Stoic Intermediates and the End for Man / I. G. Kidd -- VIII. Freedom and Determinism in the Stoic Theory of Human Action / A. A. Long -- IX. Posidonius on Emotions / I. G. Kidd -- X. The Natural Law and Stoicism / Gerard Watson.