创造东西真的很难。你必须非常在乎它，才能克服所有的失望和挫折。
Making something is really hard. You have to care about it so much that you will push through all the disappointments and frustrations.
我不是行星，我是银河。
一个奇怪的事实是，根据是从生物学还是地球物理学的角度来探讨问题，关于地球史前条件的结论完全相反，这反映了我们目前知识的不完整状态。
记忆不是关于过去，而是关于现在。
If you really want to succeed, then first forget about success and do what you love.
A mathematician's work is never truly finished; there is always more to explore.