, where being has vanished into its closest opposite, non being, and becoming has shown itself to be the truth of both, attention was called to the confusion that arises in the case of a determinate existence when we concentrate, not on its being, but on its determinate content, and then imagine if we compare this determinate content (e.g. one hundred dollars) with another determinate content (e.g. the context of my perception, of my financial situation) and discover that it makes indeed a difference whether the one content is added to the other or not that we are dealing with the distinction of being and non being, or even the distinction of being and the concept Further, in the same Volume See René Descartes, Meditationes de prima philosophia in Oeuvres de Descartes, Vol.