Retire into thyself. The rational principle which rules has this nature, that it is content with itself when it does what is just, and so secures tranquility.
– Marcus Aurelius, Meditations 7.28
The directing mind is satisfied when doing the right thing.
Therefore, watch what you do.
Keep it clear all the time; am I doing the right thing right now? Is my aim true and at the right things?
Are my intentions the best ones for this situation?