Despite many brilliant breakthroughs, Kant sometimes went astray. In his eagerness to recommend that reason should confine itself to matters of possible experience, in the Antinomies section of the Critique of Pure Reason he resorted to artificially staged arguments purporting to show that reasoning beyond possible experience necessarily leads to opposite conclusions, between which it cannot arbitrate. It seems to me that the apparent contradictions he derives are all due to uncontrolled use of particular conflicting assumptions, and therefore say nothing at all about limitations of pure reason per se. Kant should have been content simply to argue that there are many kinds of questions that pure reason alone cannot decide. On the other hand, the unfortunate weakness of these arguments does not affect the general soundness of his recommendation to stay within the realm of possible experience. (See also Self-Evidence.)