Sheldon: After all these years. I'm really happy for the two of you.
Penny: Awww, thank you.
Sheldon: Now get out of my spot.

My aunt and uncle were married sixty-three years. Towards the end it was like watching cheese melt.

Sheldon

Raj: You two are as afraid of hurting someone's feelings as I am.
Bernadette: That's not true. We were just laughing right in your face.

Sheldon: Amy's mad at me, and I'm not clear why.
Penny: Okay were you talking before you she got upset?
Sheldon: Yes.
Penny: That's probably it.

Starting to watch a television show that might run for years isn't a decision to take lightly. I'm wrestling with a big commitment issue here.

Sheldon

Amy: Can you believe it's been five years since our first date?
Sheldon: I know. Do you think I should start watching The Flash TV Show?
Amy: That's what you're thinking about?

Bernadette: I don't when I became the mother to three lazy teenagers, but it stops today. You guys are cleaning the kitchen top to bottom.
Raj: Hey, I don't even live here!
Bernadette: Yes or no, do you have clothes in my laundry right now?

Hey, look at that! You both believe in Jewish bearded guys!

Penny

My mother's been there for every award I’ve won since I beat out my twin sister for the did it on the potty trophy.

Sheldon

No need to. As soon as she flies into California air space, I'll feel a disturbance in the force.

Leonard

Sheldon: Won't that void the warranty?
Howard: Sheldon, I have a masters degree in engineering. I wipe my bottom with warranties. Except for Apple Care. That pays for itself in the long run.

All I see is a black screen. And my own reflection. I look sad.

Sheldon

The Big Bang Theory Season 8 Quotes

Amy: Sheldon, there's something else I've been wanting to say, but before I do, I just... I want you to know that you don't have to say it back.I know you're not ready, and I don't want you to say it just because social convention dictates...
Sheldon: I love you, too.
Amy: You said it.
Sheldon: There's no denying I have feelings for you that can't be explained in any other way. I briefly considered that I had a brain parasite. But that seems even more far-fetched. The only conclusion was love.

Now, typically I wear pajamas, but I recently adopted a hobo lifestyle and pajamas are the sleep-pants of the Man. I'll have you know, Mahatma Gandhi wore no pants and a nation rallied behind him!

Sheldon