As I give thought to the matter, I find four causes for the apparent misery of old age; first, it withdraws us from active accomplishments; second, it renders the body less powerful; third, it deprives us of almost all forms of enjoyment; fourth, it stands not far from death.
That which leads us to the performance of duty by offering pleasure as its reward, is not virtue, but a deceptive copy and imitation of virtue.
[Lat., Nam quae voluptate, quasi mercede aliqua, ad officium impellitur, ea non est virtus sed fallax imitatio simulatioque virtutis.]