The truth is always a compound of two half-truths.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
有时候,正是那些没人对他们抱有任何期望的人,做出了没人能想象到的事。
每一个伟大的数学理论最初都是异端邪说,最终却成了教条。
地球也是球形的,因为它从各个方向向中心施加压力。