我思,故我在。思就是在的思。思,精神上的一个寄托和延伸,是生存的另一种表达方式。一个人如果没有经历过苦难,那么他的生活是不完整的,也可以说他是不完整的。就像地球上大部分被水覆盖一样,在人的生命中,人的忧伤是多于幸福的,就像我们日常谈论的大多是生活中的遗憾和忧患。在悲观的人看来,世界上的一切都带有忧郁的色彩。人生活在这个世界上,任何一种正确的生活理论, Cogito ergo sum. Thinking is thinking. Thinking, spiritual one sustenance and extension, is another way of expression of survival. If a person has not experienced misery, then his life is incomplete, it can be said that he is incomplete. Just as most of the earth is covered with water, people’s sadness is more than happiness in human life. Much as we talk about everyday, most are the regrets and the worries in life. To the pessimistic, everything in the world is melancholy. People living in this world, any kind of correct life theory,