“You are here to learn the subtle science and exact art of potion-making. As there is little foolish wand-waving here, many of you will hardly believe this is magic. I don't expect you will really understand the beauty of the softly simmering cauldron with its shimmering fumes, the delicate power of liquids that creep through human veins, bewitching the mind, ensnaring the senses. . . I can teach you how to bottle fame, brew glory, even stopper death — if you aren't as big a bunch of dunderheads as I usually have to teach.”
“I don’t expect you will really understand the beauty of the softly simmering cauldron with its shimmering fumes, the delicate power of liquids that creep through human veins, bewitching the mind, ensnaring the senses...”
“I can teach you how to bottle fame, brew glory, even put a stopper on death.”
“But people only die in proper duels, you know, with real wizards. The most you and Malfoy’ll be able to do is send sparks at each other. Neither of you knows enough magic to do any real damage. I bet he expected you to refuse, anyway.” “And what if I wave my wand and nothing happens?” “Throw it away and punch him on the nose,” Ron suggested.”
“I don't believe in the kind of magic in my books. But I do believe something very magical can happen when you read a good book.”
“Let me out," Harry said again."No," Dumbledore repeated."If you don't - if you keep me in here - if you don't let me-""By all means continue destroying my possessions," said Dumbledore. "I daresay I have too many.”
“Just because you’re allowed to use magic now you don’t have to whip your wands out for every tiny little thing!”