Greatness is not a skill, it's an attitude.

The more we realize our minuteness and our impotence in the face of cosmic forces, the more astonishing becomes what human beings have achieved.

变革在中间阶段最为艰难。

我不抱怨，不找借口，我只是继续前进。

我们所看到的改变了我们所知道的。我们所知道的改变了我们所看到的。