Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Aristotle claimed that this man led Leucippus to develop atomic theory by providing an ontological argument against the possibility of a void. This person divided reality into a gentle flame and what he described as "ignorant night. " In one work, this person concluded that because nothing came from nothing, nothing could be destroyed. This thinker's only surviving work is divided into two sections; one of those sections is The Way of Opinions, which describes the outside world as deceitful. The other section of this philosopher's work, The Way of Truth, describes how change is impossible and existence is timeless and uniform. For ten points, name this founder of the Eleatic School.
Social Science