The value of an economic model lies in its ability to explain and predict.
The beauty of a woman must be seen from in her eyes, because that is the doorway to her heart, the place where love resides.
胜利会带来仇恨,被击败者生活在痛苦之中。和平的人放弃胜败。
复杂性不仅仅是系统中组件的数量,而是它们相互作用的性质。