The aim of my presentation is to critically examine, centering on the concept of things-in-themselves, two previous interpretations of Confucianism compared to Kant's philosophy: Mou Zongsan's and Cheng Chung-ying's. Those interpretations have in common in saying that Confucianism, unlike Kant's philosophy, can provide us with the framework to approach things-in-themselves. Mou Zongsan, especially, emphasizes that Confucianism approves of intellectual intuition which Kant reserves for God. Cheng Chung-ying, on the other hand, directs us to hold the so-called onto-hermeneutical paradigm for achieving the same goal. In my view, while Cheng's interpretation better captures Confucian sensibility than Mou's one, it seems not to take it seriously that there can be still quite a huge gap between science and ethics.