Quotation from: Nostromo: A Tale of the Seaboard

Written by: Joseph Conrad

"Si. You tell him that, and see whether he will not believe you! He will
spend days in rage and torment--and still he will believe. He will have
no thought for anything else. He will not give up till he is driven
off--why, he may even forget to kill you. He will neither eat nor sleep.
He--"

"The very thing! The very thing!" the doctor repeated in an excited
whisper. "Capataz, I begin to believe that you are a great genius in
your way."