Dat veniam corvis, vexat censura columbas. - Censure acquits the raven, but pursues the dove.
Many commit the same crime with a very different result. One bears a cross for his crime; another a crown.
Savage bears agree with one another.
Quis custodiet ipsos custodes? - Who will watch the watchers?
No wicked man knows happiness, and least of all the seducer of others.
No one ever became thoroughly bad in one step.