妙法蓮華經玄義 8.146

8.146

有定故不狂，有慧故不愚，依此安心，為眾行基址，發生煗頂，入苦忍真明，隣聖為賢，義在於此。不同外道，不知鑽搖，漿猶難得，況復酪蘇等也！

Because there is concentration, one is not mad; because there is wisdom, one is not foolish. Settling the mind in reliance upon this serves as the foundation for the multitude of practices, generating heat and summits and entering the true illumination of patience regarding suffering. Approaching the noble ones to become a worthy—the meaning lies in this. It is not like the non-Buddhists who do not know how to churn and shake, so that even whey is hard to obtain, let alone curds, butter, and the like!