Fearless is not the absence of fear. It's not being completely unafraid. Fearless is having fears. Fearless is having doubts. Lots of them. Fearless is living in spite of those things, every day.

创新的关键不仅在于发现，还在于将该发现应用于现实世界的问题。

我不需要理由去变得伟大。