探索计算复杂性是一段进入未知的旅程，每一次发现都会打开新的门。
The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.
The voice is an instrument that is inside you. It’s the only instrument that you can’t see.
