人性本善，但罪恶的社会环境使人变坏了。

"We are all searching for something, but sometimes what we are searching for is already within us."

It is our mission as scientists of this generation to ensure Chinese people have enough to eat.

Creativity is not just about ideas—it’s about making them happen.

人类活动已成为塑造地球气候的重要力量。

张大千对绘画题材难易程度的评价。