"My suggested approach to the reading of Plato pays full respect to this renunciation. But—with the reservations already noted about Plato's openness and experimental spirit—it also accepts the overwhelming impression, not just of Antiochus, but of every modern reader of at least many of his dialogues, that Platonism nonetheless constitutes a systematic body of 'philosophical doctrine'—about the soul and its immortality; the nature of human happiness and its dependence on the perfection of mind and character that comes through the virtues of wisdom, justice, temperance, and courage; the eternal and unaltering Forms whose natures structure our physical world and the world of decent human relations within it; the nature of love and the subservience of love in its genuine form to a vision of that eternal realm. These and many other substantive philosophical ideas to be explored in Plato’s dialogues are his permanent contribution to our Western philosophical culture. But we would fail to heed his own warnings if we did not explore these in a spirit of open-ended inquiry, seeking to expand and deepen our own understandings as we interrogate his texts, and ourselves through them."