Nitwit! Blubber! Oddment! Tweak! - J.K. Rowling, Harry Potter and the Sorcerer's Stone

"What happened down in the dungeons between you and Professor Quirrell is a complete secret, so, naturally the whole school knows."

"Alas! Earwax!"

"Do you mean ter tell me,"he growled at the Dursleys, "that this boy—this boy!—knows nothin' abou'—about ANYTHING?"Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad."I know some things,"he said. "I can, you know, do math and stuff."

"As much money and life as you could want! The two things most human beings would choose above all - the trouble is, humans do have a knack of choosing precisely those things that are worst for them."

"Call him Voldemort, Harry. Always use the proper name for things. Fear of a name increases fear of the thing itself."