More quotes by Marcus Aurelius, Meditations

"We must make haste then, not only because we are daily nearer to death, but also because the conception of things and the understanding of them cease first."
"How much time he gains who does not look to see what his neighbour says or does or thinks, but only at what he does himself, to make it just and holy."
"You have power over your mind - not outside events. Realize this, and you will find strength."
"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."
"If someone is able to show me that what I think or do is not right, I will happily change, for I seek the truth, by which no one was ever truly harmed. It is the person who continues in his self-deception and ignorance who is harmed."