书籍是飞机，是火车，是道路。它们是目的地，也是旅程。它们是家。
"Books are the plane, and the train, and the road. They are the destination, and the journey. They are home."
Innovation in physics often comes from looking at old problems in new ways.
The construction industry should focus on resilience and adaptability in the post-pandemic era.
Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.
追求数学知识是一场永无止境的冒险，充满了挑战、惊喜和解决不可解问题的满足感。