Why doesn't Yeardley Smith voice many characters like the others?

Is it her choice? Is it because she can really only do one voice (Lisa - I know she's done a couple of other tiny roles), or is there some reason the producers don't want her to voice numerous main characters like the other voice actors do?

Oh, and one more thing. You must find the jade monkey... Before the next full moon.

I've got an idea, Mr. Simpson. Why don't you get somethin' to eat from our food truck?

What do you think was in the box?

Mmm…forbidden gummy

With this hook and this hunk of chocolate, I'll land your boy...and I'll clean him for free

I-I know Weinstein's parents were upset, Superintendent, but uh, but I-I was sure it was a phony excuse. I mean, it sounds so made-up..."Yom Kip-Pur."

It’s an Albany expression

Oh, Mr. Snookums. Oh, I "wuv" you so-

Favorite fight?

S4 E14. Especially loved the Gorge gag.

THEY GOT POOR VINCENT PRICE FLOATING AROUND ON A TOILET CAKE TELLING ME ABOUT THE HORRORS OF AN UNFRESH BOWL.