了解自己极限的唯一方法就是超越它们。
孩子越能够专心,就越能从工作中得到平静,就越能发自内心地纪律或规则。
数学是一种创造性的努力,就像艺术或音乐一样。
The ultimate test of any economic theory is whether it improves real-world decisions.
Leadership is about inspiring others to see the potential in what seems impossible.
Systems have sub-systems and sub-systems have sub- systems and so on ad infinitum - which is why we're always starting over.