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。
可持续性不仅仅是种树,而是在正确的地方为了正确的理由种正确的树。
The principal effect of the progress of society is to increase the quantity of wealth, and the power of distributing it.