Princeton University's unofficial motto is "In the nation's service and in the service of all nations," and nowhere does this hit closer to home than in Trenton, where the university has been an important partner in education, arts and urban beautification programs. Students in Trenton's public schools have received academic and social skills tutoring from university student volunteers under the auspices of Princeton's Pace Center for Civic Engagement. Since 1981, when university alumni Marty Johnson founded Isles, Inc., a Trenton organization fostering individual and community self-reliance in urban communities, he has maintained a close partnership with Princeton. Weapons of Mass Construction, the student volunteer group of the Princeton Varsity Club which has worked with Isles over the years, recently helped Trenton's S.A.G.E. Coalition and Crisis Ministry with two new garden projects. In 2012, a dazzling public mural was unveiled in Trenton as the culmination of a collaborative mural arts project in which the university engaged with partners including Artworks, the Trenton Downtown Association, and the Philadelphia Mural Arts Project. Princeton's regal ivy-covered campus belies its ongoing interest in rolling up its sleeves with its neighbors in Trenton.