The entire given psycho-physical reality is not something that is, but something that lives: that is the germ cell of historicity. And self-reflection, which is directed not at an abstract I, but the entirety of my own self, will find that I am historically determined, just as physics grasps me as determined by the cosmos. Just as I am nature, I am history. And in this decisive sense we have to understand Goethe's dictum of [our] having lived [Gelebthaben] for at least three thousand years. Conversely, it follows that history as a scientific discipline exists only as psychology of history. (CR 71/72)