康德以三大批判展示了对真、善、美的追求 ,其中 ,第二批判 (《实践理性批判》)主要体现了道德哲学或善的沉思。当然 ,康德的伦理思想并不限于第二批判 ,事实上 ,此前的《道德形而上学原理》及此后的《道德形而上学》① ,都从不同的方面表现了他对善如何可能的追问。这里我们将 Kant demonstrated the pursuit of truth, goodness and beauty with three critiques. Among them, the second critique (“Critique of Practical Reason”) embodies moral philosophical or good contemplation. Of course, Kant’s ethical thinking is not limited to the Second Criticism. In fact, the previous “Principles of Moral Metaphysics” and the subsequent “Moral Metaphysics” all show how he can question the good from different aspects. Here we will