“Envy is the ulcer of the soul.”

“All men's souls are immortal, but the souls of the righteous are immortal and divine.”

“The misuse of language induces evil in the soul”

“And therefore if the head and the body are to be well, you must begin by curing the soul; that is the first and essential thing. And the care of the soul, my dear youth, has to be effected by the use of certain charms, and these charms are fair words; and by them temperance is implanted in the soul, and where temperance comes and stays, there health is speedily imparted, not only to the head, but to the whole body.”

“Give me beauty in the inward soul; may the outward and the inward man be at one.”

“To express oneself badly is not only faulty as far as the language goes, but does some harm to the soul.”

“Are you not ashamed of heaping up the greatest amount of money and honour and reputation, and caring so little about wisdom and truth and the greatest improvement of the soul? ”