Who said "I'm a very important man. I have important work to do."?

This quote is attributed to Frank Costanza.

I'm a very important man. I have important work to do. - Frank Costanza

"I'm a very important man. I have important work to do."

Frank Costanza Work

"These pretzels are making me thirsty."

"I'm out there, Jerry, and I'm loving every minute of it."

"Giddy up!"

"The sea was angry that day, my friend."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."