In his study of truth-telling in ancient Greece, the philosopher Michel Foucault pointed out that the act of truth-telling cannot be reduced to citizens learning something that they did not know before. Paradoxically, truth in politics is something that everybody knows, but that few dare to express.
米歇尔·福柯（Michel Foucault）在研究古希腊人如何讲真话时指出，讲真话这一行为不能降格为让公民获知他们此前不知道的东西。相反，政治中的真相是众所周知但鲜有人敢于挑明之事。