Everything is born from change. ...there is nothing nature loves more that to alter what exists and make new things like it. All that exists is the seed of what will emerge from it. You think the only seeds are the one that make plants and children? Go deeper.

From the philosopher Catulus, never to be dismissive of a friend's accusation, even if it seems unreasonable, but to make every effort to restore the relationship to its normal condition.

Do not act as if you were going to live ten thousand years. Death hangs over you. While you live, while it is in your power, be good.

Both happiness and unhappiness depend on perception

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.

Remember that to change your mind and follow him who sets you right is to be none the less free than you were before.

Remember that all is opinion. For what was said by the Cynic Monimus is manifest: and manifest too is the use of what was said, if a man receives what may be got out of it as far as it is true.