Therefore there must be in the objects perceived the substratum which represents time in general. It is the permanent in relation to which alone all time-relations of appearances can be determined. Our apprehension of the manifold of appearances is always successive, i.e. always changing. We require an underlying ground which exists at all times. It is only in the permanent that relations of time are possible.
Permanence expresses time in general.
The determinations of substance, i.e. special ways it exists. Grounded on recognition of permanence. Can be perceived only in substances.