O most pernicious woman!
O villain, villain, smiling, damned villain!
My tables, – meet it is I set it down,
That one may smile, and smile, and be a villain:
At least I’m sure it may be so in Denmark.

– William Shakespeare

Hamlet, Act 1, Scene 5. Hamlet is enraged after the Ghost’s revelation that his father was murdered by his own brother Claudius, who took the crown and Gertrude, Hamlet’s mother, as his Queen. He describes his mother as wicked, and Claudius as a smiling villain. Hamlet’s comment of how one can smile and be a villain is a perfect example of how people can be two-faced and hypocritical and hide their true nature from the world.