He argues that because of rhetoric, individuals aren't allowed to make free judgements as rhetors limit the free exercise of judgement. Kant viewed language as a neutral instrument over which individual users have control. Thus, language can be simply manipulated to express ideas. Kant's view of language is very innocent in that he holds that language says precisely what the speaker means without harboring a hidden agenda. This trend was to continue throughout the 18th century.
Understanding can perceive nothing, the senses can think nothing.
Knowledge arises only from their united action. In this work, Kant addresses epistemology. He argues that philosophical knowledge, especially metaphysics, transcends experience. The antimony arises because it is possible to construct valid arguments to argue both sides of the question. Basically, this involves consciously reversing the way we see cognition.