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 only limit to our realization of tomorrow is our doubts of today.

Maintaining curiosity is the source of innovation.

The mark of mediocrity is to look for precedent.

人们相信他们愿意相信的东西。

女人用耳朵来恋爱，而男人如果产生了爱情,却是用眼睛来恋爱。