一个故事应该有开头、中间和结尾，但不一定按这个顺序。

The essence of mathematics lies in its freedom.

We must build a world in which there shall be no economic domination.

事实上，我常常喜欢女人。我喜欢她们的不拘一格。我喜欢她们的完整。我喜欢她们的匿名性。

History does not repeat itself, but it recurs in different forms.

It's not about how hard you hit. It's about how hard you can get hit and keep moving forward.

Those who keep learning，will keep rising in life.