时间是我所有作品中看不见的材料。
Time is the invisible material in all my works.
历史不是过去。它是现在。我们带着我们的历史。我们就是我们的历史。
胜利并不总是衡量进步的标准。
I have always preferred working on concrete problems rather than abstract theories.
I don't think about my voice. I just sing.
——《在山西实业界学界及各党派欢迎会的演说》(1912年9月20日)
"We are all haunted by the past, and the past is always present."