Pliny the Younger, Letters
8.22.3 (tr. Betty Radice):
This then should be our rule at home and abroad, in every walk of life: to show no mercy to ourselves and be ready with it for others, even for those who can excuse no failings but their own. Let us always remember what was so often said by Thrasea, whose gift of sympathy made him the great man he was: "Anyone who hates faults hates mankind."
proinde hoc domi hoc foris hoc in omni vitae genere teneamus, ut nobis implacabiles simus, exorabiles istis etiam qui dare veniam nisi sibi nesciunt, mandemusque memoriae quod vir mitissimus et ob hoc quoque maximus Thrasea crebro dicere solebat: 'qui vitia odit, homines odit.'