Although there are delicacies, I don't know the use of food; Although there is supreme Tao, Buddhism does not know its goodness. It is to learn and then know the deficiency, and to teach and then know the difficulty. If you don't know enough, then you can react; Advance despite difficulties, and then strive for self-improvement. So teaching and learning are also beneficial.

Translation:

Although the food is delicious, you don't know its delicacy until you eat it; Although the truth is profound and perfect, you won't understand its benefits without studying it. Therefore, only by studying can we know our own shortcomings, and only by teaching can we feel confused. Knowing your own shortcomings in learning, you can in turn be strict with yourself; If you feel confused, you can study tirelessly. Therefore, teaching and learning complement each other. The chapter of Duiming says: "Teaching and learning are two sides of the same thing", which is the truth!