Bellatrix: "Neville Longbottom, isn't it? How's mum and dad?"
Neville: "Better, now they're about to be avenged!"
"I'll join you when Hell freezes over," said Neville. "Dumbledore's Army!" he shouted, and there was an answering cheer from the crowd, whom Voldemort's Silencing Charms seemed unable to hold.Neville Longbottom in Harry Potter and the Deathly Hallows
The thing is, it helps when people stand up to them, it gives everyone hope. I used to notice that when you did it, Harry.Neville Longbottom in Harry Potter and the Deathly Hallows
They bit off a bit more than they could chew with Gran. Little old witch living alone, they probably think they didn't need to send anyone particularly powerful. Anyway, Dawlish is still in St Mungo's and Gran is on the run. She sent me a letter, telling me she was proud of me, that I'm my parents' son, and to keep it up.Neville Longbottom in Harry Potter and the Deathly Hallows
We’re all going to keep fighting, Harry. You know that?Neville Longbottom in Harry Potter and the Deathly Hallows
Lucius: "You see, there are ten of us and only one of you... or hasn't Dumbledore ever taught you how to count?"
Neville: "He's dot alone! He's still god be!"
I'm worth twelve of you, Malfoy.Neville Longbottom in Harry Potter and the Chamber of Secrets
"And in our first year," said Neville to the group at large, "he saved that Philological Stone."Neville Longbottom in Harry Potter and the Order of the Phoenix
"You can't go out," said Neville, "you'll be caught again. Gryffindor will be in even more trouble."
"You don't understand," said Harry, "this is important."
But Neville was clearly steeling himself to do something desperate.
"I won’t let you do it," he said, hurrying to stand in front of the portrait hole. "I'll – I'll fight you!"