Upon the solution of this problem, or upon sufficient proof of the impossibility of synthetical knowledge a priori, depends the existence or downfall of metaphysics.
Most geometricians, chemists, mathematicians, and great scientists submit religion to reason only to discover a problem as unsolvable as that of squaring a circle.
A problem is something you can do something about. If you can't do something about it, then it's not a problem, it's a predicament. That means it's something that must be coped with, endured.