宇宙从何而来？它为什么，又是怎样开始的？它会有末日吗？如果有的话，会发生什么？在许多人看来，只有孩子才会问这样的问题。尽管我们知道，屈原早就有过“天问”，可我们更常常听到如此谆谆的忠告：不要“把人忧天”了。于是我们瞻前顾后，斤斤计较于一己得失，、忙忙碌碌 Where does the universe come from? Why does it, and how did it begin? Will it have an end? What happens, if any? For many people, only children will ask such questions. Although we know that Qu Yuan has long had “Heaven’s Talents”, we often hear such nasty advice: Do not “worry people”. So we look forward to, preoccupied with the gains and losses, busy