"Except our own thoughts, there is nothing absolutely in our power." —Descartes

"As long as you live, keep learning how to live." —Seneca

"Kindness is unconquerable, so long as it is without flattery or hypocrisy. For what can the most insolent man do to you, if you contrive to be kind to him, and if you have the chance gently advise and calmly show him what is right…and point this out tactfully and from a universal perspective." —Marcus Aurelius

"Confine yourself to the present." —Marcus Aurelius

"People who labor all their lives but have no purpose to direct every thought and impulse toward are wasting their time-even when hard at work." —Marcus Aurelius

"Deaths that are greater, greater portions gain." —Heraclitus

"Misfortune nobly born is good fortune." —Marcus Aurelius

"A fool is known by his speech; and a wise man by silence." —Pythagoras

"Before you heal someone, ask him if he’s willing to give up the things that make him sick." —Hippocrates

"If you accomplish something good with hard work, the labor passes quickly, but the good endures; if you do something shameful in pursuit of pleasure, the pleasure passes quickly, but the shame endures." —Musonius Rufus