可持续发展不是成本，而是我们一生中最大的创新机会。
Sustainability is not a cost - it's the biggest innovation opportunity of our lifetime.
真相不在光明中，而在阴影里。
变化是必然的。和平之后是动荡；恶人的离去之后是他们的回归。
A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.