A quote
“The same soul, however,” they answer, “assumes the guise of Justice, or Bravery, or Restraint.” This would be possible if Bravery were absent when Justice was present, and if Restraint were absent when Bravery was present; as the case stands now, all the virtues exist at the same time. Hence, how can the separate virtues be living things, if you grant that there is one single soul, which cannot create more than one single living thing?
Seneca·Letter 113 — On the Vitality of the Soul and Its Attributes (§14)·trans. Gummere