As a well known proverb put "never too old to learn", it is necessary for us all to learn ceaselessly throughout our lifetime. Recent days there are many debates that from which means -- knowledge in books or direct experience -- we learn much richer and broader? As far as I concern, it is a case to case issue in one's learning process. In some aspects, people may learn much richer and broader knowledge from …showed first 75 words of 596 total…

…showed last 75 words of 596 total…expression of our forefathers' direct or indirect experience, whether it is true or not we need to experience it then verify it. Furthermore, both pure ideas or theories in books and one's direct experiences are usually interweaved together and propped each other in the course of study. Only we realize their interconnections and properly choose which to learn in different situations for distinct purposes, can we learn better and accumulate more knowledge in the end.