Science is the knowledge of consequences, and dependence of one fact upon another.
我们生活在一个过去总是存在的世界。
Teachers are the most important role models in schools, the most instructive examples, and the most vivid examples for students.
A book is a mirror: if an ape looks into it, an apostle is unlikely to look out.
The only power any government has is the power to crack down on criminals. Well, when there aren't enough criminals, one makes them. One declares so many things to be a crime that it becomes impossible for men to live without breaking laws.