This is from the atheist philosopher Slavoj Zizek's book, Tarrying with the Negative: "Christ was the “son of man’, a ragged, miserable creature crucified between two common brigands; and it is against the background of this utterly wretched character of his earthly appearance that his divine essence shines through all the more powerfully."

Note: (In the original quotation, Zizek had enclosed "son of man" in quotes, presumably to indicate his skepticism.)