To reduce man to the duties of his own city, and to disengage him from duties to the members of other cities, is to break the universal society of the human race.
That man is guilty of impertinence who considers not the circumstances of time, or engrosses the conversation, or makes himself the subject of his discourse, or pays no regard to the company he is in.
Let war be so carried on that no other object may seem to be sought but the acquisition of peace.
[Lat., Bellum autem ita suscipiatur, ut nihil aliud, nisi pax, quaesita videatur.]
Wisdom is the only thing which can relieve us from the sway of the passions and the fear of danger, and which can teach us to bear the injuries of fortune itself with moderation, and which shows us all the ways which lead to tranquility and peace.
On the subject of the nature of the gods, the first question is Do the gods exist or do the not? It is difficult you may say to deny that they exist. I would agree if we were arguing the matter in a public assembly, but in a private discussion of this kind, it is perfectly easy to do so.
Diligence which, as it avails in all things, is also of the utmost moment in pleading causes. Diligence is to be particularly cultivated by us; it is to be constantly exerted; it is capable of effecting almost everything.