The state of life is most happy where superfluities are not required and necessities are not wanting.

Demosthenes, when taunted by Pytheas that all his arguments "smelled of the lamp," replied, "Yes, but your lamp and mine, my friend, do not witness the same labours.

Both Empedocles and Heraclitus held it for a truth that man could not be altogether cleared from injustice in dealing with beasts as he now does.

Were it only to learn benevolence to humankind, we should be merciful to other creatures.

For there is no virtue, the honour and credit for which procures a man more odium from the elite than that of justice; and this, because more than any other, it acquires a man power and authority among the common people. For they only honour the valiant and admire the wise, while in addition they also love just men, and put entire trust and confidence in them.

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.

A fool cannot hold his tongue.