It is important to recognize that the problem dealt with by Plato in the central part of the Sophist is one which arises from the use of certain Greek phrases, and has no necessary or direct connexion with metaphysics. We tend to obscure this fact if we use English terms such as ‘Being’, ‘Reality’, ‘Existence’, etc., in discussing the dialogue, and indeed make it almost impossible to understand what Plato is trying to do. It is the way in which die (...) Greek terms ỗν and μή ỗν and other such terms are used by the ‘sophists’ which gives rise to the problem. (shrink)

It is now nearly axiomatic among Platonic scholars that the Timaeus and its unfinished sequel the Critias belong to the last stage of Plato's writings. The Laws is generally held to be wholly or partly a later production. So, by many, is the Philebus, but that is all. Perhaps the privileged status of the Timaeus in the Middle Ages helped to fix the conviction that it embodies Plato's maturest theories.