你知道的越多，你就越意识到你不知道的越多。
The more you know, the more you realize you don't know.
乐观不仅仅是一种特质；它是一种可以培养的技能。
当我们平衡经济增长与环境管理时，真正的进步才会发生。
Security is not a product, but a process.
Every discovery in science is built upon the work of countless others before us.
