What pact did the two men make?

A Margin of Hope was written by Irving Howe, a literary critic and historian. Politically, he would be considered a radical, and he despised the upper class. He was a staunch advocate for socialism, which he viewed as more important than his own ethnic and religious identity.
Howe definitely struggled to agree with his father's Jewish beliefs. Howe felt the need to suppress his own Jewishness and embrace the idea of socialism as the ultimate, overriding moral guide in his life. Although the Holocaust made him identify more with his Jewishness, he remained secular. As an effort to stay true to his secular beliefs and also uphold Jewish traditions, Howe and his father agreed that he would preserve Yiddish culture. He wrote World of Our Fathers, in which Howe painted the people as political radicals like himself who would have embraced socialist policies and ideas.
This pact between the two men was an enduring one, and it served to come to terms with the differing views that the two men had about politics, religion, and culture.