当你还保留有退路

电影《千钧一发》中， 作为自然出生的主角与他经过基因改造过的弟弟在海里比赛谁游得更远，
　　How are you doing this, Vincent?
　　How have you done any of this?
　　Vincent回答:
　　You want to know how I did it?
　　This is how I did it, Anton. I never saved anything for the swim back.