Knock... and ask your heart what it doth know.

“If we should fail?Lady Macbeth:We fail?But screw your courage to the sticking p…”

“Night's candles have burned out, and jocund day stands tiptoe on the misty moun…”

“Sir, in my heart there was a kind of fighting That would not let me sleep.”

“And with a little pin bores through his castle wall and farewell king.”