Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.

真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。

我们今天种植的每一棵树都是对更绿色、更健康的未来的投资。