Which section of the article highlights the idea that your interest in the topic itself is less important than the argument you can make for it?

what is the context here? we need to know what story you're talking about : )

not concrete, existing in thought or as an idea but not having a physical or concrete existence

answer: common sense was the pamphlet that thomas paine used to convince reluctant americans to abandon the goal of reconciling with britain and to accept that independence was the only option to preserve their liberty.