Quote by Marcus Aurelius
"You are not obliged to complete the work. But neither are you free to abandon it."
More from Marcus Aurelius
"You have power over your mind - not outside events. Realize this, and you will find strength."
"The impediment to action advances action. What stands in the way becomes the way."
"You could leave life right now. Let that determine what you do and say and think."
"Waste no more time arguing what a good man should be. Be one."