“For philosophy doesn’t consist in outward display, but in taking heed to what is needed and being mindful of it.”
—MUSONIUS RUFUS, LECTURES, 16.75.15–16
This quote suggests that a Stoic cannot be identified by their appearance, but rather by their character. Monks dress in robes, priests put on collars, and bankers wear suits, but Stoics have no uniform and no stereotype. The only way to recognize a Stoic is through their character.