如果你停下来听一个音乐家或街头艺人表演超过一分钟,你就欠他们一美元。
伦理不是进步的障碍,而是负责任进步的指南。
一个社会的竞争优势不是来自学校把乘法和元素周期表教得多么好,而是来自他们激发学生想象力和创造力的程度。
Whatever is well conceived is clearly said, And the words to say it flow with ease.