释义:看见一片落叶,就知道一年内的时间将要到头了。通过细微的迹象,可以预料到整个形势的发展趋向与结果。
I don't think you can make a good movie without loving the medium.
数学的研究就像空气或重力——它无处不在,你看不到它,但你知道它在那里。
Happiness is secured through virtue; it is a good attained by man's own will.