Only the just man enjoys peace of mind.
The mind that is much elevated and insolent with prosperity, and cast down with adversity, is generally abject and base.
The flesh believes that pleasure is limitless and that it requires unlimited time; but the mind, understanding the end and limit of the flesh and ridding itself of fears of the future, secures a complete life and has no longer any need for unlimited time.
The magnitude of pleasure reaches its limit in the removal of all pain. When such pleasure is present, so long as it is uninterrupted, there is no pain either of body or of mind or of both together.
He who has peace of mind disturbs neither himself nor another.
I was not; I have been; I am not; I do not mind.