科幻小说是变革的文学。
"Science fiction is the literature of change."
At the close of our studies, we knew all the past of physics, but nothing of the present and the future.
数学中的每个问题都是一个等待解决的谜题,而乐趣就在于解决的过程。
I think the most important thing in life is to be true to yourself.