The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
写作是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。
每一个反应都是原子之间的对话。
Courage is the price that life exacts for granting peace.
Mathematics is the poetry of logical ideas.