我们都在寻找某样东西，但我们不知道它是什么。
We are all searching for something, but we don't know what it is.
The biggest risk is not taking any risk at all.
The war on coal is a war on the American worker.
Science is a powerful tool for humanity to understand and transform the world.
The harder the conflict, the more glorious the triumph.
最终，我们都被自己的选择所定义。