I think Sienfeld is the best written and funniest sitcom I have ever seen. Of the 4 main characters the one I didn't want to identify with was George. But there are 3 quotes either by him or about him that have stayed with me.
1: Breaking up: "It's not you, it's me"
2: The truth: "If you believe it, it's not a lie"
3: Life: (said to George by Jerry) "If every decision you've made is wrong then the opposite must be right".
Jim just added a few more in his comment. One I should have included:
4: Shrinkage: "I was in the pool...I was in the pool".

Everytime I see Jason Alexander I break out laughing...Great lines I still remember -
"Lupus? Is it lupus?"
"I was in the pool! I was in the pool!"
"The 'jerk store' called, and they're running out of you!"
Jim: He has that Lou Costello charm. You know he's an idiot but you can't help but feel sorry for him.
It's Festivus for the rest of us. Bring on the feats of strength, the aluminum pole, and let us all air our grievances. Best show ever! If there wasn't Seinfeld, I don't think our family would ever talk.
Arlene, that's funny. One year some friends and I actully went to a bar and had a Festivus celebration.
Whenever my husband finds the perfect parking spot he always says to me "George would be proud"