Kramer – “Often I sit and yearn.”
KRAMER (moves over and sits next to George): Do you ever yearn?
GEORGE: Yearn? Do I yearn?
KRAMER: I yearn.
GEORGE: You yearn.
KRAMER: Oh, yes. Yes, I yearn. Often, I…I sit…and yearn. Have you yearned?
GEORGE: Well, not recently. I craved. I crave all the time, constant craving…but I haven’t yearned.
KRAMER (in disgust): Look at you.
GEORGE: Aw, Kramer, don’t start…
KRAMER (moving back to the othe side of the booth): You’re wasting your life.

Who is Kramer?
Cosmo Kramer (usually referred to by his last name only Kramer), played by Michael Richards, Kramer is the wacky neighbor and friend of Jerry Seinfeld.
Cosmo was known only as “Kramer” for many years on the sitcom; not even Jerry knew his real first name. It was George Costanza who found out his unusual name through an encounter with Kramer’s mother, Babs Kramer, in Season Six. Cosmo appeared in all but two episodes: Season Two’s “The Chinese Restaurant” and Season Three’s “The Pen”.
Kramer’s character is based on the real-life Kenny Kramer, a neighbor of co-creator Larry David. At the time of the shooting of “The Seinfeld Chronicles”, Kenny Kramer had not yet authorized the use of his name, and so Kramer’s character is known as “Kessler”.