Receive wealth or prosperity without arrogance; and be ready to let it go.
Happiness is no other than soundness and perfection of mind.
As for literature, thefts cannot harm it, while the lapse of ages augments its value
If it is not right do not do it; if it is not true do not say it.
Suppose that men kill thee, cut thee in pieces, curse thee, what can these things do to prevent thy mind from remaining pure, wise, sober, just?
The 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.