科学的真正回报是理解新事物的兴奋感。

我们从不如我们看起来那样幸福。

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.

"The past is a foreign country; they do things differently there."