Dig within yourself. There lies the source of good; a source whose waters will forever well up, if you but forever dig.
-Marcus Aurelius
How do you look inward on a daily basis? Are you constantly consuming food, sights, and sounds without ever questioning if they’re good for you? To dig within is to practice the skill of inner dialogue. Talking to yourself, not out loud, or sometimes out loud, is the best way to practice introspection.
The Pocket Philosopher 