"By means of a means (faculty)"—he had said, or at least meant to say. But, is that—an answer? An explanation? Or is it not rather merely a repetition of the question? How does opium induce sleep? "By means of a means (faculty)," namely the virtus dormitiva, replies the doctor in Moliere,

Quia est in eo virtus dormitiva, Cujus est natura sensus assoupire.

But such replies belong to the realm of comedy, and it is high time to replace the Kantian question, "How are synthetic judgments a PRIORI possible?" by another question, "Why is belief in such judgments necessary?"—in effect, it is high time that we should understand that such judgments must be believed to be true, for the sake of the preservation of creatures like ourselves; though they still might naturally be false judgments! Or, more plainly spoken, and roughly and readily—