"O blind greed, and foolish mortals' minds, that spur you on in life with such desire!"

"O human race, born to fly upward, wherefore at a little wind dost thou so fall?"

"O souls, who are so sick and heavy-laden, look to the light that never sets!"

"Nature has made me a lover of beauty, and not of gain."

"Learning without wisdom is a load of books on a donkey's back."