There are only a few who control themselves and their affairs by a guiding purpose; the rest do not proceed; they are merely swept along, like objects afloat in a river.
Do you ask me what this real good is, and whence it derives? I will tell you: it comes from a good conscience, from honourable purposes, from right actions, from contempt of the gifts of chance, from an even and calm way of living which treads but one path.
He who ponders these things in his heart is indeed full of joy; but it is not a cheerful joy. It is just this joy, however, of which I would have you become the owner; for it will never fail you when once you have found its source.