Synthetic judgements a priori, or judgments which can be known to be true without experience despite not being provable on their own terms, are one of Kant’s greatest discoveries. Nietzsche’s curious, contradictory response suggests both that such judgments cannot be true, and that this does not matter, as truth does not correspond to good, and neither truth nor good correspond to human reason. Here as elsewhere Nietzsche affirms the importance of perspective, as he does not believe in the possibility of discovering truths which can be separated from the philosopher’s own point of view; it is with this in mind that Nietzsche condemns attempts to understand the world through science, which mechanically eliminates human perspective.