The answer is reason.
Philosophers of the Enlightenment believed that answer can be found
through reasoning. There were two types
of reasoning during that time. You have
rationalism that relies on deduction and Empiricism which deals with
experience. It took root due to the liberal atmosphere at the time.
Antigone sacrifices herself for her beliefs, but will not sacrifice her sister as well. This reveals the universal theme of taking responsibility for one's actions.
