自我不是一成不变的东西，而是通过选择行为不断形成的东西。

Our descendants will achieve things that will amaze us， yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

The best way to overcome fear is to face it.

技术是解锁更高效、更清洁能源解决方案的关键。