The soul becomes dyed with the colour of its thoughts. - Marcus Aurelius, Meditations

"Here is a rule to remember in future, when anything tempts you to feel bitter: not "This is misfortune,"but "To bear this worthily is good fortune."

"The best revenge is not to be like your enemy."

"Very little is needed to make a happy life; it is all within yourself in your way of thinking."

"Observe the movements of the stars as if you were running their courses with them, and let your mind constantly dwell on the changes of the elements into each other. Such imaginings wash away the filth of life on the ground."

"When another blames you or hates you, or people voice similar criticisms, go to their souls, penetrate inside and see what sort of people they are. You will realize that there is no need to be racked with anxiety that they should hold any particular opinion about you."