Marcus Aurelius

"Our actions may be impeded, but there can be no impeding our intentions or dispositions. Because we can accommodate and adapt. The mind adapts and converts to its own purposes the obstacle to our acting. The impediment to action advances action. What stands in the way becomes the way."
― Marcus Aurelius

"You have power over your mind - not outside events. Realize this, and you will find strength."
― Marcus Aurelius, Meditations

"The happiness of your life depends upon the quality of your thoughts."
― Marcus Aurelius, Meditations

"Dwell on the beauty of life. Watch the stars, and see yourself running with them."
― Marcus Aurelius, Meditations