可持续发展不是选择题，而是责任。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

Any change, even a change for the better, is always accompanied by drawbacks and discomforts.

品质从种子开始，只有最好的才能长成最优质的果实。

数十亿年来，大自然一直是最出色的生物工程师。