Kant:Perception

"Quite another judgement therefore is required before perception can become experience."

It is necessary that the perception should be included under some such a concept of the understanding. For example, air ranks under the concept of causes, which decides our judgment about it in view to its expansion as hypothetical. In that way, the expansion of the air is symbolized as belonging to it necessarily. In the judgment situation, "the air is elastic," becomes universally suitable, and a judgment of experience, only by certain judgments foregoing it, which includes the intuition of air under the perception of cause and effect.