To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.

The mind is what the brain does.

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

某种无形力量的可怕阴影，虽不可见，却在我们中间漂浮。