This volume collects several of Marcus Tullius Cicero's most famous orations, delivered during a pivotal period of the Roman Republic. Included are the four speeches "In Catilinam," denouncing the conspiracy of Catiline; "Pro Murena," a defense of Lucius Licinius Murena against charges of electoral fraud; "Pro Flacco," defending Lucius Valerius Flaccus against accusations of extortion during his governorship of Asia; "Pro Sulla," a defense of Publius Cornelius Sulla accused of conspiracy; "Pro Archia Poeta," a defense of the poet Archias's Roman citizenship; and "Pro Plancio," a defense of Gnaeus Plancius against charges of electoral malpractice. These orations offer insight into Roman law, politics, and society, showcasing Cicero's mastery of rhetoric and his commitment to the Republic. As essential primary sources, these speeches remain valuable for students of classical history, Latin literature, and political theory. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.