Vicious mole of nature.

– William Shakespeare

Hamlet, Act 1, Scene 4. On the theme of corruption, Hamlet speaks about people who are born with a character defect that blinds others to their virtues. In a metaphor, he compares such a flaw to a mole that raises tunnels in lawns and gardens and destroys them. Even if this person has good qualities, they will always be seen by others as corrupt or bad, leading to their reputation being ruined.