The document discusses equal protection under the law. It defines equal protection as requiring that all similarly situated persons or things be treated alike in terms of both rights and responsibilities. It notes that equal protection and due process are two sides of the same coin, with due process relating to fundamental individual rights and equal protection relating to treating people the same. It also lists four requisites for a valid classification by the government: 1) a substantial distinction, 2) being germane to the purpose of the law, 3) not being limited to existing conditions only, and 4) applying equally to all members of the same class.