As a young man Wilhelm had gone to China in the service of a Christian mission, and there the mental world of the Orient had opened its doors wide to him. Wilhelm was a truly religious spirit, with an unclouded and farsighted view of things. He had the gift of being able to listen without bias to the revelations of a foreign mentality, and to accomplish that miracle of empathy which enabled him to make the intellectual treasures of China accessible to Europe. He was deeply influenced by Chinese culture, and once said to me, "It is a great satisfaction to me that I never baptized a single Chinese!" In spite of his Christian background, he could not help recognizing the logic and clarity of Chinese thought. [...] Clear and unmistakably Western as his mentality was, in his I Ching commentary he manifested a degree of adaptation to Chinese psychology which is altogether unmatched.
Richard Wilhelm