Walter: "Volumetric flask is for general mixing and titration. You wouldn't apply heat to a volumetric flask. That's what a boiling flask is for. Did you learn nothing from my chemistry class?"
Jesse: "No, you flunked me. Remember?"

"My name is Walter Hartwell White. I live at 308 Negra Arroyo Lane, Albuquerque, New Mexico. 87104. To all law enforcement entities, this is not an admission of guilt. I am speaking to my family now. [Walter covers camera momentarily] Skyler, you are the love of my life, I hope you know that. Walter junior, you're my big man. There are... there are going to be some things, things that you'll come to learn about me in the next few days. I just want you to know that, no matter how it may look, I only had you in my heart. Goodbye."

"My name is Walter Hartwell White. I live at 308 Negra Arroyo Lane, Albuquerque, New Mexico. 87104. To all law enforcement entities, this is not an admission of guilt. I am speaking to my family now. [Walter covers camera momentarily] Skyler, you are the love of my life, I hope you know that. Walter junior, you're my big man. There are... there are going to be some things, things that you'll come to learn about me in the next few days. I just want you to know that, no matter how it may look, I only had you in my heart. Goodbye."

"Chemistry is, well technically, chemistry is the study of matter. But I prefer to see it as the study of change."

"Here's your receipt and just hand this claiming disc to your car wash professional. Thank you, come again."

Walter: "Hank, how much money is that?"
Hank: "Ah, it's about sevenhundred grand, a pretty good haul."
Walter: "Wow... that's... unusual isn't it, that kind of cash?"
Hank: "Um it's not the most we ever took. It's easy money, till we catch ya."