These are samples of the thoughts underlying Zunz's great works, as well as his numerous smaller, though not less important, productions: biographical and critical essays, legal opinions, sketches in the history of literature, reviews, scientific inquiries, polemical and literary fragments, collected in his work _Zur Geschichte und Litteratur_ ("Contributions to History and Literature," 1873), and in three volumes of collected writings. Since the publication of his "History of Synagogue Poetry," Zunz wrote only on rare occasions. His last work but one was _Deutsche Briefe_ (1872) on German language and German intellect, and his last, an incisive and liberal contribution to Bible criticism (_Studie zur Bibelkritik_, 1874), published in the _Zeitschrift der deutschen morgenländischen Gesellschaft_ in Leipsic. From that time on, when the death of his beloved wife, Adelheid Zunz, a most faithful helpmate, friend, counsellor, and support, occurred, he was silent. Zunz had passed his seventieth year when his "History of Synagogue Poetry" appeared. He could permit himself to indulge in well-earned rest, and from the vantage-ground of age inspect the bustling activity of a new generation of friends and disciples on the once neglected field of Jewish science. Often as the cause of religion and civil liberty received a check at one place or another, during those long years when he stood aside from the turmoil of life, a mere looker-on, he did not despair; he continued to hope undaunted. Under his picture he wrote sententiously: "Thought is strong enough to vanquish arrogance and injustice without recourse to arrogance and injustice."