In all ages it hath been a favorite text that a potent love hath the nature of an isolated fatality, whereto the mind's opinions and wonted resolves are altogether alien; as, for example, Daphnis his frenzy, wherein it had little availed him to have been convinced of Heraclitus his doctrine; or the philtre-bred passion of Tristan, who, though he had been as deep as Duns Scotus, would have had his reasoning marred by that cup too much; or Romeo in his sudden taking for Juliet, wherein any objections he might have held against Ptolemy had made little difference to his discourse under the balcony. 