Ross Geller is a bit of the nerd of the group of Friends, but definitely a member as his sister is Monica and Chandler was his friend from college.  Ross startts off as a paleontologist at the New York Museum of Natural History and later becomes a professor at NYU.

Ross is infamous for his on-and-off again relationship with Rachel, that ends with them having a kid together and mostly in the on-stage.

Of course, we can't write a bio for Ross without mentioning his three failed marriages to: lesbian Carol (who he had a kid with), Emily, and Rachel (which got annulled).

Ross Geller Quotes

Rachel: Daddy! Daddy listen to me! It's like all my life everyone's told me, "You're a shoe! You're a shoe! You're a shoe!" Well, what if I don't want to be a shoe? What if I wanna be a purse or a hat? No I don't want you to buy me a hat, I'm saying I am a hat. It's a metaphor Daddy!
Ross: You can see where he'd have trouble.

Joey: If the homo sapiens were in fact homo sapiens...is that why they're extinct?
Ross: Joey, homo sapiens are people!
Joey: Hey, I'm not judging!

Friends Quotes

(Joey is watching "Wheel of Fortune", the letters read _OUNT RUSH _ORE)
Joey: This guy is so stupid. It's Count Rushmore.
Chandler: You know you should really go on this show.
(Later in this scene)
Chandler: Oh, and by the way, there is no Count Rushmore.
Joey: Yeah? Then who's the guy who painted the faces on the mountain?

Rachel: Daddy! Daddy listen to me! It's like all my life everyone's told me, "You're a shoe! You're a shoe! You're a shoe!" Well, what if I don't want to be a shoe? What if I wanna be a purse or a hat? No I don't want you to buy me a hat, I'm saying I am a hat. It's a metaphor Daddy!
Ross: You can see where he'd have trouble.