"Ask yourself at every moment, is this necessary?" —Marcus Aurelius

"There is only one way to happiness and that is to cease worrying about things which are beyond the power or our will." —Epictetus

"Only the dead have seen the end of war." —Plato

"Pleasure in the job puts perfection in the work." —Aristotle

"The whole future lies in uncertainty: live immediately." —Seneca

"Reject your sense of injury and the injury itself disappears." —Marcus Aurelius

"Wisdom outweighs any wealth." —Sophocles

"Do not train a child to learn by force or harshness; but direct them to it by what amuses their minds, so that you may be better able to discover with accuracy the peculiar bent of the genius of each." —Plato

"At dawn, when you have trouble getting out of bed, tell yourself: I have to go to work—as a human being. What do I have to complain of, if I’m going to do what I was born for—the things I was brought into the world to do? Or is this what I was created for? To huddle under the blankets and stay warm?" —Marcus Aurelius

"Death smiles at us all, but all a man can do is smile back." —Marcus Aurelius

"The only thing I know is that I know nothing." —Socrates

"What then is that which is able to conduct a man? One thing and only one, philosophy." —Marcus Aurelius

"Waste no more time arguing what a good man should be. Be one." —Marcus Aurelius

"Human behavior flows from three main sources: desire, emotion, and knowledge." —Plato

"In marriage, there must be complete companionship and concern for each other on the part of both husband and wife, in health and in sickness and at all times, because they entered upon the marriage for this reason as well as to produce offspring. When such caring for one another is perfect, and the married couple provides it for one another, and each strives to outdo the other, then this is marriage as it ought to be and deserving of emulation, since it is a noble union. But when one partner looks to his own interests alone and neglects the other’s, or (by Zeus) the other is so minded that he lives in the same house, but keeps his mind on what is outside it, and does not wish to pull together with his partner or to cooperate, then inevitably the union is destroyed, and although they live together their common interests fare badly, and either they finally get divorced from one another or they continue on in an existence that is worse than loneliness." —Rufus

"Reject your sense of injury and the injury itself disappears." —Marcus Aurelius

"The problem creates the solution. What stands in the way becomes the way." —Marcus Aurelius

"He who has equipped himself for the whole of life does not need to be advised concerning each separate thing, because he is now trained to meet his problem as a whole; for he knows not merely how he should live with his wife or his son, but how he should live aright." —Aristo Of Chios

"Don’t explain your philosophy. Embody it." —Epictetus

"Wise people are in want of nothing, and yet need many things." —Chrysippus