The decline of violence may be the most significant and least-appreciated development in the history of our species.
粒子的概念只是一种近似,仅在特定极限情况下有效。
政府、公司和民间社会之间的合作对于实现我们的气候目标至关重要。
我一直是一个斗士,而且我将永远是一个斗士。
The future of agriculture lies in sustainable practices that respect both the environment and the needs of the people.
经历一番挫折,才能增长一分见识;经过一些番磨难,才能增一分度量;省一分利益的经营,而多一分道义;能学一分退让,可得一分便宜;去掉一分享受则减少一分罪过;对事物多一分认识,而多一分物情。