“All metaphysics, including its opponent, positivism, speaks the language of Plato. The basic word of its thinking, that is, of its presentation of the Being of beings, is eidos, idea: the outward appearance in which beings as such show themselves. Outward appearance, however, is a manner of presence. No outward appearance without light – Plato already knew this. But there is no light and no brightness without the clearing. Even darkness needs it.”
