My Little Pony: Friendship is Magic, Season 5

[After the Mane 6 get their cutie marks back, Starlight is about to attack Party Favor, Sugar Belle, Night Glider, and Double Diamond, but Twilight deflects her magic]

Starlight:
Wh– I studied that spell for years! How can you—

Twilight:
I studied magic for years too! But what I didn't know then was that studying could only take me so far. Each of my friends has taught me something different about myself. It was their unique gifts and passions and personalities that helped bring out the magic inside of me. I never would have learned that I represent the element of magic without these five, and I certainly wouldn't be here to stop you now!

Starlight:
Spare me your sentimental nonsense! I gave these ponies real friendships they never could've had otherwise!!

Double Diamond:
How do you know that?! You never even gave us a chance!

[Starlight uses her magic to escape them and goes into hiding in a cave.]

Rainbow Dash:
She's getting away!

Double Diamond:
We'll never find her in there!

Twilight:
We just have to hope that when she's had a chance to think it over, she realizes that you all have taught her something.