关键在于,政府通过税收、补贴或监管改变激励的政策效果,往往与政策支持者声称的大不相同。
Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.
生命太短暂,不能把时间浪费在那些不能让你快乐的事情上。
"The future is a concept—it exists only in our minds."