There is no good and evil, there is only power and those too... - J.K. Rowling, Harry Potter and the Sorcerer's Stone

"It does not do to dwell on dreams and forget to live."

"Everybody finished the song at different times. At last, only the Weasley twins were left singing along to a very slow funeral march."

"Fear of a name increases fear of the thing itself."

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

"Alas! Earwax!"