未来属于那些在别人看到挑战的地方看到机会的人。
I don't believe in heroes, but I believe in people who do heroic things.
质量从来不是偶然的;它始终是智慧努力的结果。
Internal mental events are irrelevant to the scientific study of behavior.
The present is the past rolled up for action, and the past is the present unrolled for understanding.
真实永远比虚构更离奇。
在数学中,提出问题的艺术必须比解决问题更有价值。