It is generally said, "Past labors are pleasant," Euripides says, for you all know the Greek verse, "The recollection of past labors is pleasant."
[Lat., Vulgo enim dicitur, Jucundi acti labores: nec male Euripides: concludam, si potero, Latine: Graecum enim hunc versum nostis omnes: Suavis laborum est proeteritorum memoria.
While all other things are uncertain, evanescent, and ephemeral, virtue alone is fixed with deep roots; it can neither be overthrown by any violence or moved from its place.
True law is right reason in agreement with nature;...it summons to duty by its commands, and averts from wrongdoing by its prohibitions... It is a sin to try to alter this law, nor is it allowable to attempt to repeal any part of it, and it is impossible to abolish it entirely.
There is nothing which wings its flight so swiftly as calumny, nothing is uttered with more ease; nothing is listened to with more readiness, nothing disbursed more widely.
The happiest end of life is this: when the mind and the other senses being unimpaired, the same nature which put it together takes asunder her own work.