Religion is the pious worship of God.
In nothing do humans approach so nearly to the gods as doing good to others.
Things sacred should not only be touched with the hands, but unviolated in thought. [Lat., Res sacros non modo manibus attingi, sed ne cogitatione quidem violari fas fuit.]
The well-known old remark of Cato, who used to wonder how two soothsayers could look one another in the face without laughing.
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.
Piety and holiness of life will propitiate the gods. [Lat., Deos placatos pietas efficiet et sanctitas.]