In this brief book, Moshe Halbertal analyzes the concepts of religious and secular sacrifice. For religious sacrifice, he examines Hebrew sources and distinguishes between sacrificing "to" a god as a gift versus secular sacrifice done "for" a cause. In the second half, he explores how the notion of sacrificing for a cause can generate consequences if taken to an extreme, such as justifying terrible acts. Overall, the book provides insights into sacrifice in religious and secular contexts while also highlighting the complexities and potential dangers in their application.