Thoughts pass in my mind like flocks of lucks in the sky。I hear the voice of their wings。

我不需要理由去相信自己。

不用圆规和曲尺，就不能画出方形和圆形。比喻做事要遵循一定的法则。

The fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers' goods, the new methods of production or transportation, the new markets, the new forms of industrial organization that capitalist enterprise creates.