But I don’t think I’ve ever known such a natural at Potions!” said Slughorn. “Instinctive, you know — like his mother! I’ve only ever taught a few with this kind of ability, I can tell you that, Sybill — why even Severus —” And to Harry’s horror, Slughorn threw out an arm and seemed to scoop Snape out of thin air toward them.

Be ruthless about protecting writing days.

Dobby has no master. Dobby is a free elf!

Don't count your owls before they are delivered.

Madam Pince, our librarian, tells me that it is 'pawed about, dribbled on, and generally maltreated' nearly everyday - a high compliment for any book.

What she did have were Bertie Bott's Every Flavor Beans, Drooble's Best Blowing Gum, Chocolate Frogs, Pumpkin Pasties, Cauldron Cakes, Licorice Wands, and a number of other strange things Harry had never seen in his life.

Perfection is not necessary to make a real and lasting difference to other people's lives.