I note in passing that the much shorter way to the transcendental epoche in my Ideas toward a Pure Phenomenology and Phenomenological Philosophy, which I call the Cartesian way (since it is thought of as being attained merely by reflectively engrossing oneself in the Cartesian epoche of the Meditations while critically purifying it of Descartes's prejudices and confusions), has a great shortcoming: while it leads to the transcendental ego in one leap, as it were, it brings this ego into view as apparently empty of content, since there can be no preparatory explication; so one is at a loss, at first, to know what has been gained by it, much less how, starting with this, a completely new sort of fundamental science, decisive for philosophy, has been attained.