"The man who says that all things are not possible to him is a fool."

"Let no one when young delay to study philosophy, nor when old grow weary of studying it. For no one is either too early or too late for the health of the soul."

"A calm mind is the greatest pleasure."

"Pleasure is the beginning and the end of the blessed life."

"The greatest good is to be found in the prudent management of the good things of life."