UPDATED: Jan. 7, 7 a.m.
"We must continue to confront our greatest challenges, and capitalize on new opportunities, with the courage, conviction and resilience that we as Philadelphians possess," he said. "I want all Philadelphia children to sleep soundly at night, and wake in the morning with the desire and the quality education to go out and conquer the world. More than anything else, that is the goal that will drive our administration over the next four years."
Just hours after the ceremony, the mayor signed two executive orders. One created an Office of Children and Families, encompassing the Department of Human Services, which oversees child welfare and juvenile justice, as well as pre-K, community schools and prevention services such as youth workforce development.
The mayor's inauguration address was augmented by the release of a report reviewing his first four years and setting the agenda for his next four, filling in details alluded to in his speech.
On the issue of improving safety, for instance, the mayor said in his speech, "nothing is more important to our administration than creating a safer and more just city for all of us."
The report says the goal is to reduce homicides by 30% and reduce the jail population by 50%.
He also called for police accountability.
"This isn't just the right thing to do," he said. "Our city's future depends on it."
Among new education initiatives, he pledged to help more students attend Community College of Philadelphia, tuition free.
The mayor also announced that the pilot street-sweeping program would be expanded to every neighborhood, though with some adjustments that would require residents to move their cars occasionally, a line that prompted laughter from the audience.
"Let's put to rest once and for all any notions that City Council is somehow 'anti-business,'" he said. "We are for workers and for job-creating companies and for equity and opportunity for every individual and industry in Philadelphia."
Clarke also said Philadelphians would have to work together to prevent violent crime and to reduce poverty.
Traditionally, the inauguration is held at the Academy of Music, followed by a walk back to City Hall for celebrations outside of council offices on the third, fourth and fifth floors, but the distance from the Met to City Hall prompted the mayor and most council members to drive back.
The party at City Hall was elaborate, especially on the fourth floor, where the desks moved from council chambers to the Met stage for the ceremony were replaced by gold cloth-covered cocktail tables, and guests ate lobster mac and cheese and shrimp cocktail served next to an ice sculpture of City Hall.