如果你一开始就承诺你还没有的东西,你会失去为之努力的欲望。
If you start out by promising what you don't even have yet, you'll lose your desire to work toward getting it.
质量永远不应妥协,但我们的道德责任也不应妥协。
物资用完了才知道不足,是因为不懂得计量;事情做完了才知道有余,是因为不懂得调节。