“For as ‘tis not the length of the beard, or the coarseness of the habit which makes a philosopher, so neither will those frequent shavings, or the mere wearing [of] a linen vestment constitute a votary of Isis; but he alone is a true servant or follower of this Goddess, who after he has heard, and been made acquainted in a proper manner with the history of the actions of these Gods, searches into the hidden truths which is concealed under them, and examines the whole by the dictates of reason and philosophy.”

– Plutarch