我们生活着的这个世界,在一刻不停地变化着.在古希腊哲学家中,赫拉克利特对变化强调得最厉害.他说,人不能两次踏入同一条河流,因为河水在流动,当人第二次踏进同一条河流时,已经不是第一次踏进时的河水了.赫拉克利特用这个生动的比喻说明万物皆在不断变化之中.但严格讲起来,概念上 The world we live in is constantly changing, and among the ancient Greek philosophers, Heraclitus has emphasized the change most, saying that one can not enter the same river twice, because the river is flowing, It is no longer the first time for a man to enter the same river, and Heraclitus uses this vivid metaphor to show that everything is constantly changing, but strictly speaking, conceptually