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.

"Life is a shipwreck, but we must not forget to sing in the lifeboats."

化学的艺术在于分离、识别和量化不同物质的能力。

真正的普惠是让每个人都有平等的机会。