Charmed, Season 8

Leo:
Knowing how untrained and untethered magic could lean to disaster, the one in Atlantis, being a prime example, The Elders knew they needed to nurture young magic. The Elders knew they needed to nurture young magic... Billie? Billie are you listening to me?

Billie:
Yeah, yeah, yeah, untethered magic, Elders, yeah, yeah, yeah... that.

Leo:
Okay. Listen, if you're gonna take over the fight for the greater good I really don't think it's a bad idea if you... know the history of good magic. Listen, Paige wanted me to teach you something good and I think you kinda make me look bad.

Billie:
Oh, come on, you could be teach me tic-tac toe, she woundn't care. She's just happy you get me of her back for the day.

Leo:
Okay, so... The magical community knew it needed a place to nurture young magic so the Elders created Magic School.