Penny: Okay, I'll go. Howard and Bernadette, I know you two planned on getting married in a big fancy wedding, but when you're in love, it doesn't matter where or how these things happen. It just matters that you have each other.
Leonard: Hmm.
Penny: Problem?
Leonard: No.
Sheldon: I think the Reverend Hofstadter is making an ironic connection between your statement about love and your rejection of his proposal in the bedroom.
Penny: Oh, grow up.

Leonard: Penny, as a scientist, my job is to figure out why things happen. But I don't think I'll ever understand how someone like me could get to be with someone like you. You know maybe I don't need to understand it, I just need to be grateful. I love you, Penny.

Leonard: What would you be if you were attached to another object by an inclined plane, wrapped helically around an axis?
Sheldon: Screwed?
Leonard: There you go.

Leonard: My point is, while you're spending all this time on your own, building computers or practicing your cello, what you're really doing is becoming interesting. When people finally do notice you, they're gonna find someone a lot cooler than they thought. And for those of you that were popular in high school, it's over, sorry. Thank you. Congratulations.

Amy: Bernadette, I want to thank you for allowing me to be your maid of honor. I also want you to know that I will be happy to do it again if this marriage craps out.

Sheldon: Would you like some aloe vera? 'cause you just got burned.

Amy: Stop it! Today is not about you, it's about Howard and Bernadette, and me!