Despite the complaints of some progressive activists, the American Enterprise Institute’s Charles Murray spoke at Harvard Wednesday night, drawing a small but peaceful protest.

That wasn’t the case when Murray spoke at Middlebury College earlier this year. Those protesters, inspired by poor interpretations of his work, shouted over Murray’s speech and turned violent, leaving one professor hospitalized. Similar complaints, that Murray’s 1994 book The Bell Curve made racist assertions about intelligence, were echoed before his address at Harvard (from which he graduated in 1965), but the event went as planned and 300 students took the opportunity to hear his ideas.