凡是创作古文，必须推究前代文章的本意，以此展现自己的学问。
DNA的双螺旋结构是所有科学中最美丽和优雅的结构之一。
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.
Education alone is not enough to lift people out of poverty; we need to address the broader system.