Today, there is a growing interest in the ethics of the human and social sciences, and in the discussions surrounding these topics, notions such as responsibility toward the past are often invoked. But those engaged in these discussions seldom acknowledge that there are at least two distinct logics of responsibility underlying many debates. These logics permeate a Western scholarly tradition but are seldom explicitly discussed. The two logics follow the Latin and Hebrew concepts of responsibility: spondeo and acharayut. The (...) purpose of this article is to make an ethical argument: to explain, based on the work of Emmanuel Levinas and others, what kind of ethical-existential logic of responsibility acharayut is and how it differs from and challenges other concepts of responsibility in moral philosophy and the human sciences. I am especially concerned with what this logic implies with regard to reading and writing about the past. Responsibility is not necessarily congruent with performing a scientific (historical) task or defending the (political, juridical) interests of a group of people. Instead, a “guiltless responsibility” to people of other generations points to something that I refer to as a transgenerational responsibility. I contrast this transgenerational responsibility to inherited guilt and related ideas of generational interconnectedness, which follow the logic of spondeo. Inherited guilt suggests that a responsible relation the past is to either identify with or blame a group of people in the past. Contrary to inherited guilt, a commitment to acharayut means constantly probing one’s responsibility to people of the past (for their posterity) and people of the future (as their predecessors) precisely because people of the present are not people of the past or people of the future. (shrink)