in the words of dick hoyt who pushed his disabled son rick in 31 boston mayor o marathons, we can t let something like this stop us. [applause] this doesn t stop us. [applause] that s what you ve taught us, boston, that s what you ve reminded us, to push on, to persevere, to not grow weary, to not get faint, even when it hurts, even when our heartaches we summon the strength that maybe we didn t even know we had and we carry on, we finish the race.