Desine de quoquam quicquam bene velle mereri
aut aliquem fieri posse putare pium.
Omnia sunt ingrata, nihil fecisse benigne
prodest, immo etiam taedet obestque magis;
ut mihi, quem nemo gravius nec acerbius urget,
quam modo qui me unum atque unicum amicum habuit.

Stop wishing to be entitled to anything from anyone
Or thinking that anyone is able to become grateful.
All things are unappreciated, it is not profitable to have done
Anything with kindness, on the contrary it is tiring and even more harmful;
As it is to me, whom no one distresses more seriously nor more painfully,
Than he who holds me as his one and only friend