Here are some quotes from Kingdom Hearts compiled by KagePhoenix.

 Opening Poem
 Thinking of you, wherever you are.
 We pray for our sorrows to end,
 and hope that our hearts will blend.
 Now I will step forward to realize this wish.
 And who knows:
 starting a new journey may not so hard
 or maybe it has already begun.
 There are many worlds,
 but they share the same sky-
 one sky, one destiny.

 Heartless Prophecy
 Ones born of the heart and darkness, devoid of hearts, ravage all worlds and bring desolation.
 Seize all hearts and consummate the great heart. All hearts to be one, one heart to encompass all.
 Realize the destiny: the realm of Kingdom Hearts. The great darkness sealed within the great heart.
 Progeny of darkness, come back to the eternal darkness.
 For the heart of light shall unseal the path.
 Seven hearts, one Keyhole, one key to the door.
 The door of darkness, tied by two keys.
 The door of darkness to seal the light.
 None shall pass but shadows, returning to the darkness.
 Ones born of the heart and darkness, hunger for every heart until the dark door opens.

 Special Secret Movie Another Side, Another Story [Deep Dive]
 Utter silence.
 A fragmented tale.
 A world without you.
 The eyes will close.
 Something so natural.
 Where's Sora?
 The memory beyond.
 Something so simple.
 [Ansem's other report] A creation born of ignorance.
 The secret place.
 His voice…it's left me.
 A world between-A forgotten world.
 The gathering.
 The third enemy-Nobody. Who is Nobody you ask? They are the nobodies. (I'm not sure if I got the last word in that quote right or not, the video was blurry)
 Behind the darkness.
 Door to the light.
 We have come for you, my liege.
 You are the source of all Heartless.
 The third key.
 We'll go together.
 He looks just like you.
 Everything is coming back to me, the true…

 I've been having these weird thoughts is any of this for real, or not?
 If I win, I'm captain!
 This isn't a dream!
 Where am I?
 I'm not a kid! And the name's Sora!
 So, gramps, is this really another world?
 This place...It just looks so familiar.
 That's the power of the Keyblade!
 We're the champs!
 What are you guys doing?
 This is no time for games!
 What's the matter with you?
 What are you thinking?
 No problem. Let's do it!
 Heart or no heart, at least he still has a conscience.
 Nothing to it!

 If two people share one, their destinies become intertwined. They'll remain a part of each other's lives no matter what.
 The winner gets to share a paopu with Kairi.
 The door has opened...
 We can't let fear stop us!
 I'm not afraid of the darkness!
 You up for this?

 Sora, let's take the raft and go--just the two of us!
 Sora, don't ever change.

 Good morning, Your Majesty.
 We'll find the king and this "key."
 Aw, what do you know, you big palooka?
 No frowning. No sad face. Okay?
 This boat runs on happy faces.
 You've got heroes standing right in front of you.
 Who are you?
 Knock it off!

 While we're in other worlds, we can't let on where we're from.
 We've gotta protect the world border.
 What do I know?
 Yeah, ya gotta look funny, like us!
 He's a real hero chosen by the Keyblade!
 And for today's weather: expect showers. Heavy showers!

 King Mickey
 There's someone with a "key"--the key to our survival.
 We need that key or we're doomed!

 Jiminy Cricket
 Cricket's the name.
 Jiminy Cricket, at your service.

 Aw, it's only a kid.
 Don't call me gramps!
 The name's Cid!
 If you ever run into trouble, you come to me.
 I'll look out for you.
 If you can't find your buddies, I'll take care of you.

 They'll come at you out of nowhere.
 And they'll keep on coming at you, as long as you continue to wield the Keyblade.
 Why would it choose a kid like you?
 I went easy on him.
 It looks like things are worse than we thought. A lot worse.
 Well, I suppose beggars can't be choosers.
 The Heartless have great fear of the Keyblade.
 Sora, go with them.
 We may never meet again, but we'll never forget each other.
 Every world among the stars has a Keyhole.
 Seeing other worlds would probably serve you well.
 It's over!
 Hey, had enough?

 Hey, you found it. Nice going, Leon.
 Aw, you're slipping, Leon.
 Come on, lazy bum. Wake up.
 I'm the great ninja Yuffie.
 I think you might've overdone it, Squall.
 The Keyblade chooses its master.

 When the Heartless came, everything changed.

 I'm looking for someone. Hades promised to help. I tried to exploit the power of darkness, but it backfired. I fell into darkness, and I couldn't find the light.
 The great god of the Underworld is afraid of a kid?

 It's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it!
 I mean, a casualty or two along the way is no big deal, right?
 Geez. Stiffer than the stiffs back home.

 Hero? That runt?
 Two words: You guys ain't heroes.
 Kid, I got two words of advice for you: Attack!

 I've come to see the door to this world.
 This world has been connected.
 Tied to the darkness...soon to be completely eclipsed.
 You do not yet know what lies beyond the door.
 There is so very much to learn.
 You understand so little.
 A meaningless effort.
 One who knows nothing can understand nothing.

 Cheshire Cat
 To trust, or not to trust? I trust you'll decide!
 Splendid. You're quite the hero.

 Wish Number One, coming right up!

 The Heartless consume the careless.

Compiled by KagePhoenix.