The act of writing is an act of optimism. You wouldn't take the trouble to do it if you felt it didn't matter.
苦难是最好的老师,教导我们了解自我的内心,虽然受到磨练与心碎,但我相信会让自己变成更好状态。
数学的快乐来自创造的行为,而不仅仅是结果。