可持续性不是成本，而是对我们共同未来的投资。

No man should judge unless he asks himself in absolute honesty whether in a similar situation he might not have done the same.

Sustainability isn't an option; it's our responsibility to the next generation.

【释义】事先考虑好可能的问题，就不会陷入困境；提前做好准备，就不会陷入绝境。