Absence

But is ABSENCE this privation itself, or something in which this Privation is lodged? Anyone maintaining that Matter and Privation are one and the same in substratum but stand separable in reason cannot be excused from assigning to each the precise principle which distinguishes it in reason from the other: that which defines Matter must be kept quite apart from that defining the Privation and vice versa. Enneads II,4,14