Leibniz’s Discourse on the Natural Theology of the Chinese explores his attempt to understand and reconstruct the Chinese metaphysical ideas. He acknowledges the Chinese lack the Western art of demonstration but praises their superior civility. Leibniz examines the concept of Li, the supreme unity, finding contradictions in its attributes and suggesting it as a spiritual substance. He questions the relationships between Li, Taikie, and Xangti, highlighting the complexities within Chinese interpretations. Leibniz suspects the missionaries' reported beliefs might have mixed diverse sources and imposed external interpretations, distorting the texts. He concludes that his method of analyzing structural analogies and relations aligns with the Chinese way of thinking.
In the book’s fourth section, Leibniz admires the Chinese binary arithmetic found in the Yijing. Leibniz understood Chinese ideas better than the missionaries, despite not having direct access to their texts. Leibniz’s method of reconstructing coherent doctrines by emphasizing relations and context proved effective. He critiqued and rectified the missionaries’ interpretations, considering their beliefs on the immortal soul as potentially distorted. Overall, Leibniz’s work sheds light on Chinese metaphysics and the complexities of their religious concepts.