Mental phenomena are nature's experiments in survival.

Singing is not for fame, but for love.

Liberty is the fruit of thought.

The past is a mirror, but we often see only what we want to see.

Every book is a door to a new world, a new perspective, a new understanding of life and existence.

中国的崛起代表了自冷战结束以来对自由国际秩序的最重大挑战。

Collaboration is essential in research; no one can solve big problems alone.