Content of Character Counts, Philip Murphy Tells Class of 2015 - The former U.S. Ambassador to Germany also reminded graduates that "the power of the individual to change the world is undiminished."
semicolon in a series
To clarify in a series, use the semicolon before and: "Among the speakers were Doug Weldon, the Stone Professor of Psychology; Donald Carter, chief diversity officer and professor of Africana studies; and Lydia Hamessley, associate professor of music." Place semicolons outside of quotation marks.
SOURCE: Hamilton College Editorial Style Guide