In Do Morals Matter?, Joseph S. Nye ’58, a leading scholar of international relations, analyzes how ethics have factored into U.S. foreign policy during the post-1945 era. Examining each presidency from Truman to Trump, Nye scores foreign-policy outcomes along three ethical dimensions: their intentions, the means they used, and the consequences of their decisions. Alongside this, he evaluates presidential leadership qualities, elaborating on which approaches work and which do not.