Paul D. MacLean Professions : Researcher Born : May 1, 1913 Died : December 26, 2007 Browse All Authors Famous Quotes by Paul D. MacLean An interest in the brain requires no justification other than a curiosity to know why we are here, what we are doing here, and where we are going. Paul D. MacLean why-we-are-here curiosity brain Similar Authors Albert Claude researcher Amishi Jha researcher August Krogh researcher Arvo Ylppo researcher Arthur Kornberg researcher Allen Newell researcher All Authors