明代学者陈献章曾说：“疑者，觉悟之机也”；南宋哲学家朱熹也说过：“大疑则大悟，不疑则不悟”。可见，古人是非常重视学习中的“疑”的。学贵有疑，学则知疑。质疑——提出问题，即在学习过程中善于提出有价值的问题；释疑——解答问题，即在认真思考的前拖下，破解疑难。 Chen Xianzhang, a scholar of the Ming Dynasty, once said: “The suspect is the opportunity to realize consciousness,” and the Southern Song philosopher Zhu Xi also said: “When you doubt, you realize it, but you don’t doubt it.” It can be seen that the ancients attached great importance to the “doubtfulness” of learning. Scholars are skeptical and academics are skeptical. Questioning - asking questions, that is, in the process of learning is good at raising valuable questions; answering doubts - answering questions, that is, dragging down serious thoughts and solving difficult problems.