Mary Cooper: Well, well. That's a powerful smell.

Mary Cooper: You should have called sooner.

Mary Cooper: Shelly, dinner's ready.
Sheldon: Coming.
Mary Cooper: No cats!
Sheldon: Aww.

Mary Cooper: Now, the reason I called Amy over was to find out what kind of person she is. Now, after chatting a bit, I have to say that while she is a perfectly ... unique ... young woman, you two are definitely not suited for each other.

Mary Cooper: Well, putting aside the pig Latin. It's a good a thing you two decided to end the relationship so I didn't have to end it for you.

Leonard: I saw what you did there.
Mary Cooper: He thinks he's such a smarty pants. He's no different from any man. You tell him not to do something, that's all they want to do. If I hadn't told my brother Stumpy not to clear out the woodchipper by hand, we'd still be calling him Edward.

Mary Cooper: How are you doing on the young lady front? I hear you're in some sort of a long distance situation.
Leonard: Oh, yeah. It's Raj's sister. It's kinda tough. She's in India and also her parents aren't happy she's dating someone white.
Mary Cooper: Oh, that's a funny turn, isn't it? You never think about it going the other way.

Sheldon: I'm glad we're finally getting to do something together. Just the two of us.
Mary Cooper: Sure. One thing you really miss when you're on vacation is laundry.

Mary Cooper: The trick to pancakes is bacon grease. I cook everything in it.
Leonard: Everything? Aren't you worried about your health?
Mary Cooper: Oh, doctors are always changing their minds. One week bacon grease is bad for you. The next week we're not getting enough of it.

Mary Cooper: Oh, this one's sweet. You know, for your rosary rattlers.
Leonard: Mrs Cooper, we say Catholics, not rosary rattlers.
Mary Cooper: My goodness. It's a wonder you people in California can talk at all.

Mary Cooper: Well, honey, don't send it back yet. Your sister's married, and I'm not letting your brother give my grandmother's ring to that whore he's dating.

Alfred Hofstadter: So, after your husband passed, you never remarried?
Mary Cooper: No, just focused on work and the church.
Alfred Hofstadter: Ah. And what do you do?
Mary Cooper: I work at the church.

Mary Cooper: There's a lot of traffic. Are we gonna be okay?
Amy: You'll be at the airport an hour before your flight.
Mary Cooper: Good. Thank you.
Sheldon: Plenty of time for you to meet another geriatric boy toy.
Mary Cooper: Hey, I will not have you be disrespectful to me.
Sheldon: Yes ma'am.

Mary Cooper: You know how your daddy used to say that you could only fish for so long before you gotta throw a stick of dynamite in the water?

Penny: This is the best cobbler I've ever had.
Mary Cooper: It was always Sheldon's favorite. You know what the secret ingredient is?
Penny: Love?
Mary Cooper: Lard.