Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
I was never afraid of failure; for I would sooner fail than not be among the greatest.
教育儿童,就不需要惩罚成年人。
获胜的唯一途径就是比别人学得更快。
写作是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。