学生的学习活动,是一个由不知到知,由知之较少到知之较多的矛盾运动的过程。这矛盾运动的转化主要是靠“疑”来推进。有疑就得设法解疑:要解疑,就得认真思考,多方求索;疑难解决了,认识就有所提高,学业就有所长进,智能就有所发展。宋代朱熹强调“学贵有疑”,法国巴尔扎克认为“打开一切科学的钥匙都毫无疑义的是问号”,这正是前人学习活动可贵的经验总结。 The student's learning activity is a process of contradicting movement from ignorance to knowing and from knowing less to knowing more. The transformation of this contradictory movement is mainly driven by “doubt”. Doubts have to try to dispel doubts: to solve the question, you have to think seriously, multi-search; difficult to solve, awareness has improved, academic progress, intelligence has developed. Zhu Xi in the Song Dynasty emphasized that “there is doubt in your studies.” According to Balzac in France, “the key to opening up all science is doubtlessly a question mark,” which is a valuable lesson from previous studies.