Strengthen international cooperation to promote the improvement of technology and management in the coal industry.

To be human is to be guilty.

I don’t follow any particular theory. I just do what seems right to me.

天堂的合唱队和地球上的一切物质——总之，构成世界的所有物体——都没有存在，没有心灵。

艺术是可见与不可见之间的桥梁。

心理学的任务是研究经验的直接内容。

The desire for recognition, the thymotic part of the soul, is what drives human history.

离别的人默默无语，月亮也寂静无声；明月有光辉照耀，人却有深情难诉。