人类似乎是一种不甘寂寞的生物。有人因此创造出了“社会性”这样的名词,来说明人的这样一种特性。或许正因为如此,人这种“智慧生命”才能创造、发展出令人目眩的文化和科技成就来。或许是出于同样的原因,人类才“异想天开”地要去探究自己以外的世界,并固执地相信地球以外必然有和自己一样聪明甚至更富有智慧的生物存在。探测飞船已经在火星登陆了,寻找生命存在的前提条件:液态 Human beings seem to be an unwilling creature. Someone therefore created the term “social” to describe such a feature of man. Perhaps because of this, people like this “intelligent life” can create and develop dazzling cultural and scientific achievements. Perhaps for the same reason, human beings are “whimsical” to explore the world beyond their own and stubbornly believe that there must exist, beyond their own being, the same intelligent and even intelligent creatures as themselves. The spacecraft has landed on Mars, looking for a prerequisite for existence: liquid