It is difficult to retain what you may have learned unless you should practice it. -Difficile est tenere quae acceperis nisi exerceas

Glory ought to be the consequence, not the motive of our actions.

However often you may have done them a favour, if you once refuse they forget everything except your refusal.

There is no book so bad that it is not profitable in some part. -Nullus est liber tam malus ut non aliqua parte prosit

Generosity, when once set going, knows not how to stop; as the more familiar we are with the lovely form, the more enamored we become of her charms.

Too much polishing weakens rather than improves a work.

Let us strive the more earnestly therefore to lengthen out our span of life-- life that is poured out like water and falls as the leaf-- if not by action (the means to which lie in another's power), yet in any case by study and research; and since it is not granted us to live long, let us transmit to posterity some memorial that we have at least lived.