At first he thought he felt bad because he was afraid of leading an army, but it wasn't true. He knew he'd make a good commander. He felt himself wanting to cry. He hadn't cried since the first few days of homesickness after he got here. He tried to put a name on the feeling that put a lump in his throat and made him sob silently, however much he tried to hold it down. He bit down on his hand to stop the feeling, to replace it with pain. It didn't help.
Orson Scott Card (2010). “Ender's Game”, p.251, Macmillan