Sister Mrosla [taught] junior high. She and Mark met ... in eighth-grade math class. One Friday after a tough week of algebra, she sensed that her students were struggling. She told them [to] pull out a sheet of paper. On every other line, she said, write the name of each student in class and next to the name write a kind word - a sincere compliment. That weekend she compiled the lists for each student on yellow legal-size paper, adding her own compliment at the end. She handed the papers back during the next class. On Mark's paper, among other simple compliments, somebody had written, A great friend." On Judy Holmes Swanson's list, someone noted that she "smiles all the time." "No one ever said anything about the exercise after that class period," Sister Mrosla wrote. "It didn't matter. The exercise accomplished what I hoped it would - the students were happy with themselves and one another again." Years passed. Mark was killed in Vietnam. At Mark's funeral, [his parents] were waiting for the nun. "We want to show you something. They found this on Mark when he was killed," [James Eklund] said, gently taking out a worn piece of paper that had been refolded many times. "I knew without looking at the writing," Sister Mrosla wrote, "that the papers were the ones I had listed all of the good things each of his classmates had said about Mark." A few of Mark's school friends who were gathered around also recognized the paper, and one by one they told her they still had theirs.