According to his student Reuven Bonfil: "He remained connected to the Israel Defense Forces until his last day and contributed to study meetings at the high command level.

He expressed these views in his writings:[4] "In truth, it is fitting for the modern individual to dedicate their heart primarily to their historical world, for the sake of their soul and the health of society."

This characteristic statement was a direct appeal to his generation and readers to not only delve into the study of history but also to understand that historical writing is akin to the "book of humanity."

In an era increasingly oriented towards the technologization of daily life, where the isolated individual, lacking the burden of generations and culture, is portrayed by thinkers and mass communication, Ben-Sasson's call was that of a rebellious educator with great spirit.

His student, Prof. Yosef Haker, wrote about his methodology: "In his research and books, Ben-Sasson consistently investigates and seeks the inner essence based on analysis and clarification of diverse primary sources.

External documents and sources provided the basis for factual description and sometimes filled gaps in the spiritual and cultural picture; however, Ben-Sasson’s main focus was on clarifying the inner creative work and testimony of the Jewish community and its character.

His nephew, Menachem Ben-Sasson, is a professor of Jewish history, the President of the Hebrew University of Jerusalem, a former Rector, and a former Member of Knesset and Chairman of the Constitution, Law and Justice Committee.