正是在我们最黑暗的时刻，我们必须集中精力看到光明。
It is during our darkest moments that we must focus to see the light.
The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
从化石燃料中受益最少的国家不应承担气候变化的最沉重负担。
Business is like war—you need a strategy, but you also need to adapt when things go wrong.