Varys: You made a pact with fanatics.

Tyrion Lannister: I did and it worked.

Varys: If you shaved your beard with a straight razor, you’d say the razor worked. That doesn’t mean it won’t cut your throat.

Tyrion Lannister: Spoken like a man who has never had to shave.

From Game of Thrones – Season 6 Episode 8: ‘No One’ (6×08)