“We act as though comfort and luxury were the chief requirements of life. All that we need to make us happy is something to be enthusiastic about.”
~Albert Einstein~
In other words, to be happy, we don’t need to have a lot of STUFF, we just need to have FUN.
A Clean Surface. 
Speaking of Einstein…
Leonard: Girls like Penny never end up with guys who own time machines.
Sheldon: I disagree. Your inability to successfully woo Penny long predates your acquisition of the time machine. That failure clearly stands on its own.
Leonard: Thanks for pointing it out.
Sheldon: In addition, your premise is flawed. In the original film, Rod Taylor got Yvette Mimieux with that very time machine. In Back to the Future, Marty McFly got the opportunity to hook up with his extremely attractive young mother.
Leonard: Those are movies.
Sheldon: Of course they’re movies. Were you expecting me to come up with an example involving a real-life time machine? That’s absurd
I had to look up Dave’s quoted conversation.. the fact that the show is called ‘The Big Bang’ plays into the Einstein theme so perfectly! I love it.
Rayme, that’s such a great motto for life. A worthy quest, something to be enthusiastic about. 🙂