"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

"Be indifferent to what makes no difference." —Marcus Aurelius

"In anger we should refrain both from speech and action." —Pythagoras

"Courage is knowing what not to fear." —Plato

"Nothing exists except atoms and free space, everything else is opinion." —Democritus

"Love is a serious mental disease." —Plato, Phaedrus

"All that exists is the seed of what will emerge from it." —Marcus Aurelius

"Think of yourself as dead. You have lived your life. Now take what’s left and live it properly." —Marcus Aurelius

"In anger we should refrain both from speech and action." —Pythagoras

"How does it help…to make troubles heavier by bemoaning them?" —Seneca

"Nothing is needed by fools, for they do not understand how to use anything, but are in want of everything." —Marcus Aurelius

"I do not know whether I shall make progress; but I should prefer to lack success rather than to lack faith." —Seneca

"The fates lead the willing but drag the unwilling." —Cleanthes

"Gratitude is not only the greatest of virtues, but the parent of all others." —Cicero