It’s difficult to comprehend the number of tragedies, freak accidents, and acts of malice that Boston has seen this year—the bad news came in waves and in clusters. With the graduation of Boston University’s Class of 2013, it is a time of rebirth, of renewed faith, and of abundance. In the sunlit faces of our new graduates, it’s clear that nothing, no matter how harsh, can completely diminish the spirit of this city.