脉者．阴阳之气也．有浮即有沉．有大即有小．有迟即有数．故吴草庐．滑伯仁．李濒湖．皆以对待编之．今欲其易于分别．凡以浮辨者为一类．以沉辨者为一类．以浮沉合辨者为一类．不以浮沉辨．而以至数辨者为一类．不以浮沉至数辨．而以形辨者为一类．
