Same author

One coincidence is just a coincidence, two are a clue, three are proof.

— Agatha Christie

Same reference

Believe nothing you hear and half of what you see.

— Edgar Allan Poe

Same reference

Hell is other people.

— Jean-Paul Sartre

Same reference

Ne croyez pas ce que vous entendez, et la moitié de ce que vous voyez.

— Edgar Allan Poe