Here are a few funny, dark poetic quotes.

Being an avid fan of Harry Potter, I fervently hold even its single punctuation mark sacred! Harry potter is not just an entertaining fiction to me. It holds a great deal more value than that, it touches our hearts and drives our minds to think. It has a great many sayings in it, hilarious, taunting, philosophical n thought provoking. And it’s impossible for me to write them all. Here are some of the quotes I dug up to share with you all!

• To the well-organized mind, death is but the next great adventure.
Harry Potter and the Sorcerer's Stone

• It does not do to dwell on dreams and forget to live.
Harry Potter and the Sorcerer's Stone

• The truth is a beautiful and terrible thing, and should therefore be treated with caution.
Harry Potter and the Sorcerer's Stone

• It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends.
Harry Potter and the Sorcerer's Stone

• There are some things you can't share without ending up liking each other.
Harry Potter and the Sorcerer's Stone

• It is our choices...that show what we truly are, far more than our abilities.
Harry Potter and the Chamber of Secrets

• The best of us must sometimes eat our words.
Harry Potter and the Chamber of Secrets.

• If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.
Harry Potter and the Goblet of Fire

• Curiosity is not a sin.... But we should exercise caution with our curiosity... yes, indeed.
Harry Potter and the Goblet of Fire

• Differences of habit and language are nothing at all if our aims are identical and our hearts are open.
Harry Potter and the Goblet of Fire

• You fail to recognize that it matters not what someone is born, but what they grow to be!
Harry Potter and the Goblet of Fire

• What's comin' will come and we'll meet it when it does.
Harry Potter and the Goblet of Fire

• Indifference and neglect often do much more damage than outright dislike.
Harry Potter and the Order of the Phoenix

• Youth cannot know how age thinks and feels. But old men are guilty if they forget what it was to be young.
Harry Potter and the Order of the Phoenix

• People find it far easier to forgive others for being wrong than being right.
Harry Potter and the Half-Blood Prince

• Where your treasure is, there will your heart be also.
Harry Potter and the Deathly Hallows

The Harry Potter series had been very popular both in bookstores and cinemas since its release in the 80’s. Its popularity soared high when the books were made into movies. Avid fans created a fuss over them. And with the spread of the internet, Harry Potter fans spread like wildfire, too. Fan pages and blogs have been created. Harry Potter forums and games have started and spread as well. Along with this “epidemic,” many people are actually looking up at the series—both books and movies—and think that they can find and associate themselves with these.
And since you want some quotes, here are some that I have found:
This one’s from Peeve (victory song):
“We did it, we bashed them, wee Potter's the one,
And Voldy's gone moldy, so now let's have fun!”
From Dumbledore:
“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.”
From Professor Quirrell:
“There is no good or evil: only power and those too weak to seek it.”
Or you can check this website out for more quotes, http://www.allgreatquotes.com/harry_potter_quotes.shtml.