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.

悲观主义者的决定性特征是，他们倾向于相信坏事会持续很长时间，会破坏他们所做的一切，并且是他们自己的错。

如果你对大人们说：我看到一幢用玫瑰色的砖盖成的漂亮的房子，它的.窗户上有天竺葵，屋顶上还有鸽子他们怎么也想象不出这种房子有多么好。必须对他们说：我看见了一幢价值十万法郎的房子。那么他们就惊叫道：多么漂亮的房子啊！

我们不仅要追求技术的领先，更要追求技术的实用性和普及性。

谷物生产的创新不仅关乎技术，更关乎思维方式的转变。