With which of these Canterbury tales character does Chaucer illustrate a division between religious and scientific thought

It might be said that the character in the Canterbury tales that can illustrate a decision between religious and scientific thought is the Doctor because he is presented as a person who can talk about medical terms very well and he never read the Bible. He is seen as a perfect physician who deals with pharmacist but he seems to be corrupted (from religion) because of his profession. He knew about literature and astronomy.