一片普通的树叶,简单吧?自然简单之至。人们对它可能毫不在意.但是,哲学家却可以用它来阐述“个别与一般”,植物学家可以通过它来探讨光合作用,诗人们则能据此吟出“一叶知春”或“一叶惊秋”之类的隽语。他们之所以能够从平凡的事物中攫取高深的学问,是由于他们勤于观察,善于思考.但观察和思考都离不开读书。一个对叶绿素茫无所知的人,不论 An ordinary leaf, simple? Naturally simple. People may not care about it. However, philosophers can use it to describe “individual and general”. Botanists can use it to explore photosynthesis, and poets can use it to “know the spring” or “A leaf scared” and the like. The reason why they can learn profound knowledge from ordinary things is because they are observant and good at thinking. But observation and reflection can not be separated from reading. A person who knows nothing about chlorophyll, regardless