The best way to appreciate your job is to imagine yourself without one.

Nothing is more precious than independence and freedom.

读诗应当以心灵去感悟心灵，不能仅从字面意思去理解。

"Entanglement is the most profound resource nature has given us for quantum information processing."

哲学的本质不在于它提供的答案，而在于它提出的问题。