Diogenes Laertius, circa A.D. 200.
The following famous authors denied its permissibility, and condemned those who practised it:─
Pythagoras, d. 520 B.C.
Socrates, d. 399 B.C.
Plato, d. 348 B.C.
Aristotle, d. 321 B.C.
Æschines, d. 314 B.C.
Virgil, d. 19 B.C. (See Æneid, vi. 434.)
Pliny the Younger, A.D. 116.
Lucian, d. A.D. 180.