1. 所以如果一个人的智力芜漫，让他学习数学；因为在演算的过程中只要他的心神稍有走失，他就必须从头来过。
If his wit be not apt to distinguish or find differences, let him study the schoolmen, for they are cymini sectores.
2. 所以如果一个人的智力芜漫，让他学习数学；因为在演算过程中只要他的心神稍有走失，他就必须从头来过。
So if a man's wit is wandering, let him study the mathematics; for in demonstrations, if his wit is called away never so little, he must begin again.
3. 所以如果一个人的智力芜漫，让他学习数学；因为在演算过程中只要他的心神稍有走失，他就必须从头来过。
So if a man's wit be wandering, let him study the mathematic-s; for in demonstrations, if his wit be called away never sonbsp; little, he must begin again.