translation.en: The second premise -- and this was something that was very difficult for us to convince the librarians of at first -- is that libraries, since the inception of Carnegie Library tradition in America, had a second responsibility, and that was for social roles.
translation.zh: 才能分享书的影响力 第二个预设，这个很难， 我们花了很大力气去说服图书管理员 它们自从 美国卡耐基图书馆的传统开始 就承担了一种第二性的社会责任