If virtue promises happiness, prosperity and peace, then progress in virtue is progress in each of these for to whatever point the perfection of anything brings us, progress is always an approach toward it.

Some things are up to us [eph' hêmin] and some things are not up to us. Our opinions are up to us, and our impulses, desires, aversions–in short, whatever is our own doing. Our bodies are not up to us, nor are our possessions, our reputations, or our public offices, or, that is, whatever is not our own doing.

The origin of sorrow is this: to wish for something that does not come to pass.

Give yourself fully to your endeavors. Decide to construct your character through excellent actions and determine to pay the price of a worthy goal. The trials you encounter will introduce you to your strengths.

Remember that you are but an actor, acting whatever part the Master has ordained. It may be short or it may be long. If he wishes you to represent a poor man, do so heartily; if a cripple, or a magistrate, or a private man, in each case act your part with honor.

Liars are the cause of all the sins and crimes in the world.

Don't demand or expect that events happen as you would wish them do. Accept events as they actually happen. That way, peace is possible.