modern social life greatly shortened, ind ividuals with more than 10 years study of knowledge, will soon become obsolet e. If no longer study update, immediatel y entered the so-called "half-life knowle dge." According to statistics, in today's world 90% of the knowledge generated i n the last 30 years, the half-life of knowl edge only five to seven years. Moreover, the ability of people like batteries, use o ver time and gradually lost. Therefore, t he need to keep the knowledge of the pe ople "refueling", "charge." In contempor ary times, the world has seen rapid deve lopment, the speed of updating knowled ge is accelerating, people have to adapt to a changing world, we must strive to li ve and learn, to have life-long learning a ttitude. To the elderly as an example, ha ve to learn how to use the washing mac hines, microwave ovens or even comput ers, or technology can not enjoy the fun and convenient. Lifelong learning this re gard, Mr. Lu Xun is an example, before d ying, in one hour is still writing the articl e! There are Chinese richest man Li Ka-shing, his study every night to read this good habit has insisted for several deca des. What is more, only "live and learn t he old" still far from enough, Bill Gates s aid on the sentence: in the 21st century, than not learning, but learning speed. In today's business environment, there is n o fight without destroying the iron rice b owl. Your work today may be indispens able