Meditation 6.3-9
3. Look to what is within: do not allow the intrinsic quality or the worth of any one fact to escape you.
4. All things that exist will very swiftly change; either they will pass into vapour, if we presume that matter is a whole, or else they will be dispersed into their atoms.
5. The controlling Reason knows its own disposition, what it creates, and the material upon which it works.
6. The noblest kind of retribution is not to become like your enemy.
7. Rejoice and set up your rest in one thing: to pass from act to act of fellowship, keeping God in remembrance.
8. The governing principle it is which wakes itself up and adapts itself, making itself of whatever kind it wills and making all that happens to it appear to be of whatever kind it wills.
9. All things are being accomplished in each case according to the nature of the Whole; for certainly they cannot be in accordance with any other nature, whether embracing them without, or enclosed within, or attached to them outside.