德国哲学家伊曼努尔·康德曾经说过:“有两种东西总是让赞叹和敬畏充满我们的心灵,一个是在我头顶的星空,一个是在我心中的道德法则。”可见,人们历来对夜晚是充满敬畏的。白昼和黑夜的交替,是大自然的一种规律,也是芸芸众生正常生存的重要保障之一。然而,人造灯光已经让夜晚不再那么黑了。黑夜渐渐离我们远去,随之而来的问题也 The German philosopher Immanuel Kant once said: “There are two things that always fill the heart with admiration and fear, one in the sky above me and one in my heart.” People have always been awestruck by the night. The alternation of day and night is a law of nature and one of the important guarantees for the common existence of mortal beings. However, artificial lighting has made the night no longer dark. Night gradually away from us, followed by the problem also