This small loss, which in any case can be compensated for, if anyone likes, by comparing the first and second a my existence can be determined, is sensible, and is bound to a condition of time; however, this determination, and hence inner experience itself, depends on something permanent, which is not in me, and consequently must be outside me, and I must consider myself in relationa to it; thus for an experience in general to be possible, the reality of outer sense is necessarily bound up with that of inner sense,.e.