If the job has been correctly done when a common stock is purchased, the time to sell it is—almost never.
The simplicity of nature is not to be measured by that of our conceptions.
在热闹繁华中如果能够保持理性，才不至于迷失，也就省去了许多徒慕虚荣的苦心；困境中，在人生的低谷期，若能保持一份乐观，才会有一番更为真切的人生感悟。
Fisheries should not only pursue economic benefits but also focus on ecological and social benefits.
渔业不仅要追求经济效益，更要注重生态效益和社会效益。
Programmers are not to be measured by their ingenuity and their logic but by the completeness of their case analysis.