This is the part of a great man, after he has maturely weighed all circumstances, to punish the guilty, to spare the many, and in every state of fortune not to depart from an upright, virtuous conduct.
For while we are enclosed in these confinements of the body, we perform as a kind of duty the heavy task of necessity; for the soul from heaven has been cast down from its dwelling on high and sunk, as it were, into the earth, a place just the opposite to godlike nature and eternity. But I believe that the immortal gods have sown souls in human bodies so there might exist beings to guard the world and after contemplating the order of heaven, might imitate it by their moderation and steadfastness in life.
In fact the whole passion ordinarily termed love (and heaven help me if I can think of any other term to apply to it) is of such exceeding triviality that I see nothing that I think comparable with it.
The gardener plants trees, not one berry of which he will ever see: and shall not a public man plant laws, institutions, government, in short, under the same conditions?
We rejoice in the joys of our friends as much as we do our own, and we are equally grieved at their sorrows. Wherefore the wise people will feel toward their friends as they do toward themselves, and whatever labor they would encounter with a view to their own pleasure, they will encounter also for the sake of their friends.
We must be ever on the search for some persons whom we shall love and who will love us in return. If good will and affection are taken away, every joy is taken from life.