Robert Jervis

In his scholarship, Waltz asked the tough questions about the difficult and important issues. He was motivated by both theoretical and policy questions, the latter often setting the agenda for the former. He was intellectually courageous, usually staking out iconoclastic positions -- some of which were initially derided, many of which ended up becoming mainstream thinking. No matter what one’s theoretical persuasion, he was an intellectual force that had to be reckoned with.