We are all haunted by the ghosts of our own pasts, and sometimes, by the ghosts of others.

The lithium-ion battery is something that has impacted the world in a very big way.

You can only find out what you actually believe (rather than what you think you believe) by watching how you act. You simply don’t know what you believe, before that. You are too complex to understand yourself.

大道从虚无中产生一气，又从一气中分化出阴阳。