Sustainability is not an add-on, it's a way of thinking.

You are not the opinion of somebody who doesn't know you or care about you.

心灵是一个过程的动态平衡。

经济研究应旨在为现实世界的决策提供信息。

For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.

最终，衡量你的不是你承担了多少，而是你最终完成了什么。