The primary virtue is: hold your tongue; who knows how to keep quiet is close to God.

This is my firm persuasion, that since the human soul exerts itself with so great activity, since it has such a remembrance of the best, such a concern for the future, since it is enriched with so many arts, sciences, and discoveries, it is impossible but the being which contains all these must be immortal.

Should anyone attempt to deceive you by false expressions, and not be a true friend at heart, act in the same manner, and thus art will defeat art. [If you would catch a man let him think he is catching you.]

Do not expect good from another's death.

Good-breeding is the art of showing men, by external signs, the internal regard we have for them. It arises from good sense, improved by conversing with good company.

I will begin to speak, when I have that to say which had not better be unsaid.

Consider it the greatest of all virtues to restrain the tongue.