Look well into thyself; there is a source of strength which will always spring up if thou wilt always look.
Marcus AureliusObserve always that everything is the result of a change, and get used to thinking that there is nothing Nature loves so well as to change existing forms and to make new ones like them.
Marcus AureliusThe happiness of your life depends upon the quality of your thoughts: therefore, guard accordingly, and take care that you entertain no notions unsuitable to virtue and reasonable nature.
Marcus Aurelius