Learn How to Say No We've all been taught that we should help people. It is the right thing to do and will make us popular with others. It may even win us favors in return. However, we must be rea
They have blocked every effort to close deadly loopholes, to keep out vicious criminals, and to stop the flow of illegal immigrants and drugs. 他们阻碍了我们的每一次努力--堵住致命漏洞，抵挡凶恶的罪犯，杜绝非法移民和毒品的流动。 They are a di
我们都身处在由朋友、家人、同事等所构建的庞大的社会网络之中。波士顿哈佛大学医学院的医学社会学家尼古拉斯 克里斯塔基斯Nicholas Christakis追踪发现了一系列的特质──诸如快乐和肥胖──是如何从一个人传递到另一个人的，解释了你在社会网络中所处的地位是如何以你意想不到的方式影响着你的生活。 Nicholas Christakis：The hidden influence of socia
