除第一次外，所有内容均应自上而下构建。

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

我走了这么远，不只是为了走到这里。

城市不只是一个场景，它是故事中的另一个角色。

Cultivate 12 people who love you， because they are worth more than 12 million people who like you.

学习的速度决定数字经济增长的速度。