Art should be dangerous - not physically dangerous, but dangerous to ideas.
领导力意味着今天做出艰难的决定，为未来的几代人带来好处。
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.