Object and subject, sterile by themselves, become fruitful by conjunction. There are not two sources of knowledge, but one only, and that one is produced by the union of the two apparent opposites. Truth is the crystallization, so to speak, that results from the combined elements. Let us follow the initial steps of Kant's analysis. The first fact noted is, that the subject is sensitive to impressions made by outward things, and is receptive of them.
Time is no empirical conception which can be deduced from experience.
Time is a necessary representation which lies at the foundation of all intuitions. In it alone is any reality of phenomena possible. These disappear, but it cannot be annihilated. So of space. These two forms of sensibility, inherent and invariable, to which all experiences are subject, are primeval facts of consciousness.