What we achieve inwardly will change outer reality.

That we may consult concerning others, and not others concerning us.

When Anaxagoras was told of the death of his son, he only said, "I knew he was mortal." So we in all casualties of life should say "I knew my riches were uncertain, that my friend was but a man." Such considerations would soon pacify us, because all our troubles proceed from their being unexpected.

Instead of using medicine, better fast today.

We ought to give our friend pain if it will benefit him, but not to the extent of breaking off our friendship; but just as we make use of some biting medicine that will save and preserve the life of the patient. And so the friend, like a musician, in bringing about an improvement to what is good and expedient, sometimes slackens the chords, sometimes tightens them, and is often pleasant, but always useful.

He (Cato) never gave his opinion in the Senate upon any other point whatever, without adding these words, "And, in my opinion Carthage should be destroyed." ["Delenda est Carthago."]

Time is the wisest of all counselors.