Program testing can be used to show the presence of bugs, but never to show their absence!
程序测试可以用来显示错误的存在,但绝不能显示它们的不存在!
每一个冠军都曾是拒绝放弃的竞争者。
The best agricultural solutions are often the simplest ones.
Sustainability isn't an option; it's a responsibility we all share.
Stay hungry, stay foolish.