马克思能熟背许多诗文而经久不忘,其办法之一就是到一定阶段要复习已背过的内容。清代学者顾炎武能背诵数十万字的《十三经》,并不是他有什么过目不忘的才能,而是“学而时习之”。他每年给自己规定:春秋两季,要按计划分别温习冬夏两季所读的书,即半年读书,半年复习。久而久之, Marx was able to familiarize himself with many poems and long-term memory. One of his methods was to review what he had passed at a certain stage. The Qing Dynasty scholar Gu Yanwu was able to memorize the “Thirteen Scriptures” with hundreds of thousands of characters. This is not what he has forgotten. Instead, he “learns and learns from time to time.” Every year he stipulates himself: In the spring and fall, it is necessary to study the books read in winter and summer separately according to the plan, that is, to study for six months and review it in half a year. Over time,