Sustainability isn't a trend—it's a responsibility we owe to future generations.
历史学家必须兼具诗人和哲学家的特质。
最好的书为读者的想象力留出空间。
生活中最好的老师是经验。
The only thing more painful than being an active forgetter is to be an inert rememberer.
The unknown is not to be feared but to be explored.
最可持续的森林是既能满足人类需求又能屹立不倒的森林。