In late April, John D. Lewis, a historian and classicist at Ashland University, flew to Virginia to deliver a lecture at George Mason University about U.S. policy toward Iran. Mr. Lewis is an admirer of the late Ayn Rand, and he shares her belief that democracies should respond to external attacks without much concern for civilian casualties. He wrote in 2006 that "America, acting alone and with overwhelming force, must destroy the Iranian Islamic State now. It must do so openly, and indeed spectacularly, for the entire world to see, for this is the only way to demonstrate the spectacular failure and incompetence of the Islamic fundamentalist movement as a whole." His George Mason speech had already been postponed from its original February date because of protests from left-wing student organizations. When he finally delivered it, he did so under heavy security. Hours before he flew to Virginia, he resigned from his position at Ashland, in the culmination of a years-long faculty battle over Mr. Lewis's interest in objectivism, as Rand termed her philosophy. And in the Ashland arena, Mr. Lewis says, his foes were mainstream and evangelical Christians. Mr. Lewis says his battles reflect the extraordinary and unfair degree of hostility that objectivists in academe receive from both left and right.