Abraham Lincoln's Lyceum Address, delivered in 1838 when he was just starting his law practice, warns against the dangers of mob rule and the potential for internal destruction of the United States. In this powerful speech, Lincoln emphasizes the importance of the Constitution and the rule of law, describing them as the "political religion of our nation." His insights remain strikingly relevant today, as they remind us of the necessity for wisdom and high-mindedness in civic life. Theodore Roosevelt's introduction further underscores Lincoln's timeless message about the importance of acting with integrity and foresight, making this address a profound reflection on the enduring values that underpin democracy.