The Didaskalikos, or Handbook of Platonism, is usually attributed to Alcinous, a Middle Platonist of the second century. It offers one of the clearest surviving summaries of Platonist teaching before Plotinus: the supreme God, the intelligible Forms, the cosmic soul, providence, ethics, and the soul’s assimilation to the divine. Its authorship and exact date remain debated, but its value as a map of Middle Platonist doctrine is secure.
The work is important because it presents philosophy as a disciplined education of the whole person rather than an abstract system. Within the Royal Art, it helps illuminate the Disciple’s task: to order mind, desire, and action beneath the Good, so that metaphysical understanding becomes a way of life and a preparation for ascent.