一个理论的优雅不仅在于其数学表述,还在于其在一个统一框架下连接不同现象的能力。
The elegance of a theory is not just in its mathematical formulation, but in its ability to connect disparate phenomena under a unified framework.
出自先秦《荀子·哀公》。鸟被逼得走投无路之时就会用嘴啄人,兽到困窘之时就会用爪抓人,人到穷困潦倒之时就会设计骗人。以鸟兽困窘之时的行为为喻,说明人到穷困潦倒之时便会放弃道德操守的原因。
现代林业必须平衡三个轴心:生态、经济和道德。
Fiction is like a spider's web, attached ever so lightly perhaps, but still attached to life at all four corners.