Never trust anything that can think for itself if you can't see where it keeps its brain!BrainArthur Weasley in Harry Potter and the Chamber of Secrets
"They run off eckeltricity, do they?" he said knowledgeably. "Ah yes, I can see the plugs. I collect plugs."Arthur Weasley in Harry Potter and the Goblet of Fire
One of his jinxes backfired, the toilet exploded and they found him lying unconscious in the wreckage covered from head to foot in -Arthur Weasley in Harry Potter and the Order of the Phoenix
Harry: "A Regurgitating Toilet?"
Arthur: "Anti-Muggle pranksters. Muggles are pulling the flush and instead of everything disappearing - well, you can imagine. The poor things keep calling in those - those pumbles, I think they're called - you know, the ones who mend pipes and things."
"Make no mistake, we'll hear about it," added Lupin pleasantly.
"Yes," said Mr Weasley, "even if you won't let Harry use the fellytone."
Remus Lupin: "I am not being ridiculous. Tonks deserves somebody young and whole."
Arthur Weasley: "But she wants you. And after all, Remus, young and whole men do not necessarily remain so."
We have a very different idea of what disgraces the name of wizard, Malfoy.Arthur Weasley in Harry Potter and the Chamber of Secrets
Fascinating, Ingenious, really how many ways Muggles have found of getting along without magic.MugglesArthur Weasley in Harry Potter and the Chamber of Secrets
Now, Harry you must know all about Muggles, tell me, what exactly is the function of a rubber duck?MugglesArthur Weasley in Harry Potter and the Chamber of Secrets
Molly Weasley: "Your sons flew that enchanted car of yours to Surrey and back last night."
Arthur Weasley: "Did you really? How did it go? I mean... That was very wrong indeed, boys. Very wrong of you."
Times like these, dark times, they do funny things to people. They can tear them apart.Arthur Weasley in Harry Potter and the Half-Blood Prince
Molly Weasley: "But how did you get to Diagon Alley to buy your school things last year?"
Harry Potter: "I went on the Underground."
Arthur Weasley: "Really? Were there escapators?"
Dirk Cresswell is ten times the wizard you are. And if he survives Azkaban, you'll have to answer to him, not to mention his wife, his sons, and his friends.Arthur Weasley in Harry Potter and the Deathly Hallows
I'll prove who I am, Kingsley, after I've seen my son, now back off if you know what's good for you!Arthur Weasley in Harry Potter and the Deathly Hallows
Amos Diggory peered good-naturedly around at the three Weasley boys, Harry, Hermione and Ginny. "All these yours, Arthur?"
"Oh, no, only the redheads," said Mr Weasley, pointing out his children.
Don't get upset, Molly, but Augustus Pye had an idea.... He's the Trainee Healer, you know, lovely young chap and very interested in... um... complementary medicine.... I mean, some of these old Muggle remedies... well, they're called stitches, Molly, and they work very well on - on Muggle wounds.MugglesArthur Weasley in Harry Potter and the Order of the Phoenix