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.

Chandler: Joey's tailor... took advantage of me.
Ross: What?
Joey: No way, I've been going to the guy for twelve years.
Chandler: Oh come on, he said he was going to do my inseem, then he ran his hand up my leg and then there was definite...
Ross: What? (Chandler closes his eyes)
Chandler: Cupping.
Joey: That's how they do pants! First they go up one side, they move it over, then they go up the other side then they move it back, and then they do the rear. Ross, will you tell him. Isn't that how a tailor measures pants?
Ross: Yes, yes it is... in prison!

Friends 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.

Ross: Rach, you know, I can see you naked anytime I want.
Rachel: What?
Ross: All I have to do is close my eyes. See? (Ross closes his eyes) Woo-hoo!
Rachel: Ross, stop that!
Ross: I'm sorry.
Rachel: Come on! I don't want you thinking of me like that anymore.
Ross: Uh, sorry. Nothing you can do about it. It's one of my, uh, rights as the ex-boyfriend. (Ross closes his eyes again) Oh yeah!
Rachel: Stop it! Cut it out! Cut it out!
Ross: Okay, okay. I'm sorry. It will never happen-- (Closes eyes again) Uh oh. Wait a minute! Wait, wait. Now there are a hundred of you, and I'm the king!