In a commencement address at M.I.T. two years ago, Gore used a different analogy.
In subsequent speeches, notably in a commencement address at Barnard College in 2011, she urged women to "lean in".
"No one wanted to hire me," Mr. Pelley told students there in a commencement address in 2009.
Mr. Bush was in Colorado Springs on Wednesday, defending the Iraq war in a commencement speech to the graduates of the Air Force Academy.
But in a commencement address at the university two years later, first flagged by CNN, Williams said he had met the pope in person.
"I was just, you know, trying to make nice," Snow recounted in a commencement address at the Catholic University of America last year.
In a commencement address at M.I.T., he delivered a rather dry lecture on the relationship between technological change and productivity growth.
"Learning is not to be found on a printout," David McCullough, the Pulitzer Prize-winning biographer, said in a commencement address at Boston College in May.
Last month, he confronted the issue in a commencement speech at the University of Notre Dame, an appearance that drew protests because of his views.
In a commencement address at the University of Pennsylvania in May, for instance, he hailed American workers as "three times as productive as any worker in the world".
After the paper reprimanded him for speaking out against the Iraq war in a commencement address in 2003, he left to become an anti-corporate activist.
