Platon, Symposium (all), Plato, Republic II 376c-III 403c; 514a-518a (the Cave), X to 608c; Ion (all)
Aristoteles, Poetikken, event. engelsk utgave: On Poetry
Plotinus, Ennead I.6 “On Beauty”, Ennead V.8 “On the Intelligible Beauty” 1-6, Ennead V.9, “Intellect, Ideas and Being” 9-14.