# The whole driving force was the quest to find what constitutes consciousness in the… by Roger Penrose > "The whole driving force was the quest to find what constitutes consciousness in the physical world." > **— Roger Penrose**, *Berkeley Groks interview (2005), compressed candidate wording* Verification Status: Unverified — exact wording/source has not yet been independently confirmed against a primary source; source clue: Berkeley Groks interview (2005), compressed candidate wording.