De parasito sive artem esse parasiticam
Lucian of Samosata
Lucian, Vol. 3. Harmon, A. M., editor. London: William Heinemann, Ltd.; Cambridge, MA: Harvard University Press, 1921.
Besides, the other arts have teachers, but Parasitic has none; like the Art of Poetry according to the definition of Socrates, it comes by some divine dispensation.[*](Plato, Ion 534 B-c. )