"A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. So the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion."
钱财地位，往往成为丛集怨恨的渊薮；才华能力，常常就是招致灾祸的根由；名望声誊，往往成为引来毁谤的媒介；欢欣快乐，常常就是走向悲凉的开始。
Scale does not equal value, precision is the key.
深度学习是一种机器学习形式，它使计算机能够从经验中学习，并通过概念层次来理解世界。