The best way to learn mathematics is to do mathematics.

真正的魔力在于从日常中看见非凡的能力。

煤炭的未来在于平衡环境责任与能源需求。

The history of all hitherto existing society is the history of class struggles.

创新不仅仅是技术，而是为客户创造价值。

Ignorance more frequently begets confidence than does knowledge.

每首歌都讲述一个故事。