The liberal arts tradition is under attack in the United States, even as it is spreading around the globe. That tradition was formalized in Latin Antiquity, but the essential questions and rational methodology that underpin it date to Ancient Greek philosophy. At the core of the tradition is the range of modalities of rational thinking, the main rubrics of which are formal logic, informal logic, and analysis. All learning is for citizenship, as citizenship includes civic, economic, and cultural dimensions. We need all three dimensions, and all forms of learning, including STEM, preprofessional, and vocational education. But only the liberal arts promote all three dimensions. Without liberal learning, there can be no democracy.