佛祖統紀 36.40

36.40

五年。上有疾召高僧法開視脈。知不起不肯進藥。后怒囚之。俄有崩獲免。或問曰。高明剛簡。何以醫術經懷。師曰。明六度以除四魔之疾。調九候以療風寒之病。自利利人不亦可乎。孫綽曰。才辨縱橫。以數術通大教。其開公乎。

In the fifth year, when the Emperor was ill, he summoned the eminent monk Fakai to examine his pulse. Knowing that the Emperor would not recover, Fakai was unwilling to offer medicine. The Empress was enraged and imprisoned him. Soon after, the Emperor passed away, and he was released. Someone asked him, 'You are lofty, brilliant, firm, and simple; why do you keep medical arts in your mind?' The Master said, 'To illuminate the six perfections so as to eliminate the ailments of the four Māras, and to adjust the nine pulse conditions so as to cure diseases of wind and cold—is it not permissible to benefit oneself and benefit others?' Sun Chuo said, 'With talent and eloquence unconstrained, he penetrates the Great Teaching through arts and calculations—that is Master Kai!'