Parents wonder why the streams are bitter, when they themselves have poisoned the fountain.

可持续性不是一种选择，而是我们行业生存的必要条件。

"Sometimes I think that the only thing that connects us to the past is the present. Without the present, the past would be lost forever."

Your past doesn't define you, it prepares you.

解释：冬天不洗冰水，并不是吝惜冰；夏天不烤火，也不是舍不得火。而是因为这样做对身体不适宜。

Reform requires courage, but even more wisdom.