Most dangerous is that temptation that doth goad us on to sin in loving virtue.
But jealous souls will not be answered so, They are not ever jealous for the cause, But jealous for they're jealous. 'Tis a monster Begot upon itself, born on itself.
I am indeed not her fool, but her corrupter of words. (Act III, sc. I, 37-38)
Neither a borrower nor a lender be.
Hide not thy poison with such sugar'd words
Take pains. Be perfect.