The difference between correlation and causation is not just academic—it can have profound policy implications.
未经反思的人生是半生,而传记就是那面镜子。
我不害怕电脑。我害怕没有它们。
The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
艺术家必须是神秘的孩子。
Small-scale farmers are the backbone of this industry; their knowledge is invaluable.