At the end of my opening lecture in my 1998 course on global health, most students headed for the coffee machine but one remained behind. I saw her wander slowly toward the front of the room with tears in her eyes, then, when she understood that I had noticed her, she stopped, flipped her face away, and looked out the window. She was obviously moved. I expected her to share with me a sad personal problem that was going to impede her participation in the course. Before I could say anything comforting she turned around, gained control over her emotions, and in a steady voice said something
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