As he that is bitten by a mad dog, is afraid of everything almost that he seeth: so unto him, whom the dogmata have once bitten, or in whom true knowledge hath made an impression, everything almost that he sees or reads be it never so short or ordinary, doth afford a good memento; to put him out of all grief and fear, as that of the poet, 'The winds blow upon the trees, and their leaves fall upon the ground.