Sustainability is not an option; it's a responsibility we all share.
可持续性不是一种选择,而是我们共同的责任。
人性的弱点总是充满贪婪、恐惧或者是愚蠢,这是完全可以预测的,但是我们无法预测这种人性弱点的发生顺序。
It is not a lack of love,but a lack of friendship that makes unhappy marriages.