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.
In the end, we will remember not the words of our enemies, but the silence of our friends.
The greatest enemy of a good plan is the dream of a perfect plan.