What is fair in men, passes away, but not so in art

Truth is so excellent, that if it praises but small things they become noble.

Love, Fear, and Esteem, - Write these on three stones.

As regards this vice, we read that the peacock is more guilty of it than any other animal. For it is always contemplating the beauty of its tail, which it spreads in the form of a wheel, and by its cries attracts to itself the gaze of the creatures that surround it. And this is the last vice to be conquered.

Of several bodies, all equally large and equally distant, that which is most brightly illuminated will appear to the eye nearest and largest.

Just as eating against one's will is injurious to health, so studying without a liking for it spoils the memory, and it retains nothing it takes in.

I roamed the countryside searching for answers to things I did not understand.