Beverly Hofstadter: Penny, go on.
Penny: Well, ever since his paper got disproven, he's been a wreck. He's been sad and and angry. He just seems kind of broken.
Beverly Hofstadter: Well, it sounds like he may be grieving.
Penny: Really? Over a theory?
Beverly Hofstadter: Of course. You can grieve over any emotional loss. The more you care about something, the greater the trauma of losing it.
Leonard: Oh, boy. He cared about this a lot.
Penny: Yeah. What can we do to help him?
Beverly Hofstadter: Well, grieving is a process. Every culture has its own rituals and traditions to facilitate mourning. The ancient Egyptians had their mummification, the Tibetans had their sky funerals-
Leonard: And when I was little and my dog died, my mom sat me down and very gently told me that she wished the truck had hit my dad instead.
Beverly Hofstadter: I was trying to lighten the mood. Your dog had just died.

Leonard: Well, uh, okay, um, I dont want to get back together with Penny. We tried it, it was crazy, it didn't work, but I can't deal with the fact that she slept with my friend Raj. And then I find out that Raj's sister Priya, who I've been going out with for eight months, is moving back to India. So I'm just completely confused and alone.
Beverly Hofstadter: I understand.
Leonard: Got any advice?
Beverly Hofstadter: Yes. Buck up.
Leonard: Excuse me. You're a world-renowned expert in parenting and child development, and all you've got is buck up?
Beverly Hofstadter: Sorry. Buck up, sissy pants.

Beverly Hofstadter: So, Howard, have you and Rajesh finally summoned the courage to express your latent homosexual feelings towards one another?

Beverly Hofstadter: She doesn't have much in the way of career prospects, and don't make her responsible for her own orgasms as well.

Sheldon: Thanks, Dad. We're gonna give them hell.

Leonard: I have something that might help. It's-it's a recording of the only person whose opinion Sheldon actually respects.
Amy: Hawking? Feynman?
Leonard: No, himself.

Leonard: It's a pep talk he made when he was a kid. He gave it to me years ago and told me to save it for a real emergency.
Penny: What? You didn't break it out when he declared his room a sovereign nation and waged a trade war against us?
Leonard: His major export is talking. I didn't want that anyway.