Virtue is uniform, conformable to reason, and of unvarying consistency; nothing can be added to it that can make it more than virtue; nothing can be taken from it, and the name of virtue be left.
Lay down this rule of friendship: neither ask nor consent to do what is wrong. The plea, 'for friendship's sake,' is a discreditable one, and should not be admitted for a moment. We should ask from friends and do for friends only what is good.
I cannot find a faithful message-bearer," he wrote to his friend, the scholar Atticus. "How few are they who are able to carry a rather weighty letter without lightening it by reading.
Come now: Do we really think that the gods are everywhere called by the same names by which they are addressed by us? But the gods have as many names as there are languages among humans. For it is not with the gods as with you: you are Velleius wherever you go, but Vulcan is not Vulcan in Italy and in Africa and in Spain.
Be sure that it is not you that is mortal, but only your body. For that man whom your outward form reveals is not yourself; the spirit is the true self, not that physical figure which and be pointed out by your finger.