The world is immense, constructed on no plan or theory which the intellect of man can grasp.
 William James, The Varieties of Religious Experience (1902). copy citation

Context

“There is an astringent relish about the truth of this conviction which some men can feel, and which for them is as near an approach as can be made to the feeling of religious joy. “In Job,” says that coldly truthful writer, the author of Mark Rutherford, “God reminds us that man is not the measure of his creation. The world is immense, constructed on no plan or theory which the intellect of man can grasp. It is transcendent everywhere. This is the burden of every verse, and is the secret, if there be one, of the poem. Sufficient or insufficient, there is nothing more.... God is great, we know not his ways.” source