Why aren't there a comma after "withal" and "with the true outlook of the poet"??

He was a wide reader, one who, from natural bent, dipped into the curious and out-of-the-way corners of literature, as will be noticed in his references to other works in the course of the lectures, particularly to Rowbotham's picturesque and fascinating story of the formative period of music. Withal he was always in touch with contemporary affairs. With the true outlook of the poet he was fearless, individual, and even radical in his views. This spirit, as indicated before, he carried into his lectures, for he demanded of his pupils that above all they should be prepared to do their own thinking and reach their own conclusions. He was accustomed to say that we need in the United States, a public that shall be independent in its judgment on art and art products, that shall not be tied down to verdicts based on tradition and convention, but shall be prepared to reach conclusions through knowledge and sincerity.