Who said "I'm really not sure that's scientifically possible."?

This quote is attributed to Professor Farnsworth.

I'm really not sure that's scientifically possible. - Professor Farnsworth

"I'm really not sure that's scientifically possible."

Professor Farnsworth Science

"Good news, everyone!"

"I'm going to build my own theme park, with blackjack and hookers!"

"Why must I be surrounded by these incompetent fools?"

"To shreds, you say?"

"Science helps us understand the world."

"I've witnessed the birth of science, and it continues to amaze me."

"I'm something of a scientist myself."

"The fusion process is self-sustaining now!"