The health of the eye seems to demand a horizon. We are never tired, so long as we can see far enough.

The health of the eye seems to demand a horizon. We are never tired, so long as we can see far enough.

眼睛的健康似乎需要视野。只要我们看得够远，我们就永远不会累。

-- Ralph Waldo Emerson 拉尔夫·沃尔多·爱默生