Lay down this rule of friendship: neither ask nor consent to do what is wrong. The plea, 'for friendship's sake,' is a discreditable one, and should not be admitted for a moment. We should ask from friends and do for friends only what is good.
It is a crime to put a Roman citizen in chains, it is an enormity to flog one, sheer murder to slay one: what, then, shall I say of crucifixion? It is impossible to find the word for such an abomination.
The best Armour of Old Age is a well spent life preceding it; a Life employed in the Pursuit of useful Knowledge, in honourable Actions and the Practice of Virtue; in which he who labours to improve himself from his Youth, will in Age reap the happiest Fruits of them; not only because these never leave a Man, not even in the extremest Old Age; but because a Conscience bearing Witness that our Life was well-spent, together with the Remembrance of past good Actions, yields an unspeakable Comfort to the Soul
But if you should take the bond of goodwill out of the universe no house or city could stand, nor would even the tillage of the fields abide. If that statement is not clear, then you may understand how great is the power of friendship and of concord from a consideration of the results of enmity and disagreement. For what house is so strong, or what state so enduring that it cannot be utterly overthrown by animosities and division?