过去从未死去，它甚至还没有过去。

气候变化要求我们重新思考传统耕作方式。

情绪是为机体行动做准备的生物信号。

"The act of writing is an act of optimism. You wouldn't take the trouble to do it if you felt it didn't matter."

Remember, hope is a good thing, maybe the best of things. And no good thing ever dies.

教师的最大幸福就是把一群群孩子送往理想的彼岸。