Old age takes in part savoury wisdom for its food - see to that your old age will not lack in nourishment.
The study of what is excellent is food for the mind and body.
To speak well of a base man is much the same as speaking ill of a good man.
Who would believe that so small a space could contain the images of all the universe?
It is better to imitate ancient than modern work.
First study the science, and then practice the art which is born of that science.