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.

I think the first wisdom is to restrain the tongue.

Don't promise twice what you can do at once.

Speak briefly and to the point.

Bitter are the roots of study, but how sweet their fruit.

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

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