Since our nation’s founding, the American Academy of Arts and Sciences has celebrated excellence in every domain of scholarship and cultivated knowledge from many perspectives to advance the public good. The Academy is an independent, nonpartisan institution. Central to our work is a commitment to intellectual freedom–the freedom to teach, to learn, to speak, and to inquire without strictures of ideological or political orthodoxy. Freedom to pursue knowledge, without fear of censorship or discipline, is a bedrock value of our constitutional democracy and a practical condition for crafting the most effective solutions to our society’s toughest challenges.