The worth of a psychological theory is measured by its usefulness.

今天我们播下的每一粒种子都蕴含着改变未来粮食体系的潜力。

The true test of civilization is not the census, nor the size of cities, nor the crops, but the kind of man that the country turns out.

最好的设计是那些将功能与美感无缝结合的设计。

The value of an idea lies in its practical consequences.

写作就是重写。