你最好别吃了饭不付钱就跑……那些为了每小时三块钱辛苦工作的人不得不替你付账。
The most successful societies are those that have been able to balance the need for a strong state with the need for individual freedom.
The beauty of mathematics only shows itself to more patient followers.
Sustainability in chemical manufacturing isn't an option—it's our responsibility to the next generation.