Houston Mayor Sylvester Turner welcomed His Highness the Aga Khan to Houston in commemoration of his Diamond Jubilee. Mayor Turner said: "It is my honour and pleasure to welcome His Highness the Aga Khan back to Houston, a city that strives to exemplify the ethics he professes, such as self reliance, education and research, compassion and sharing, inclusiveness, pluralism and the nurturing of a sustainable environment." He also recognised His Highness' and the Ismaili community’s significant contributions to improving the quality of life of Houstonian’s over many years.