The Schizoid Man ( episode ) An away team discovers the dying Doctor Ira Graves , who claims to be Data ' s " grandfather . " Summary . Teaser . Dr . Ira Graves , a prominent specialist in cybernetic technology , has sent a distress call . The crew soon discovers that the distress call was sent out by Graves ' assistant and that it was sent out of fear ; however , the crew can only find two lifeform s on Gravesworld . Act One . While " en route " , a distress call is picked up from the , which is carrying 2 , 012 colonists and has suffered an outer hull breach . Due to the need to assist the " Constantinople " quickly , as well as Graves , a near - warp transport is used to transport an away team to Gravesworld . Dr . Pulaski suggests to Captain Picard that she remain on the and help treat the injured personnel on the " Constantinople " and recommends that Dr . Selar , a Vulcan , go in her place . Selar has Pulaski ' s full confidence , so Picard agrees . The " Enterprise " drops out of warp , Lieutenant La Forge initiates the transport , and the ship re - engages its warp engines . This was a disorientating process for the away team , since Counselor Deanna Troi noted that she thought she was stuck in the wall for a moment while materializing . Worf reinforced that , for a moment , she was . The assistant , Kareen Brianon , reported the distress based on the fact that Graves ' health is deteriorating rapidly , with shortness of breath and outbursts of temper . Graves is not entirely happy at the presence of Doctor Selar , commenting that he is " healthy as a Rigellian ox " . In their discussion , Graves begins to offer new information about himself . Graves was the mentor of Doctor Noonian Soong , the creator and " father " of Data . Graves is diagnosed by Selar with terminal Darnay ' s disease . Act Two . As Graves ' condition worsens , he and Data form a rapport , and after Data asks about a song Graves is whistling ( " If I Only Had a Heart " , from " The Wizard of Oz " ) , they begin a conversation on the nature of emotions , life , and death . Graves reveals that just prior to death , he intends to transfer his intellect into his computer , commenting that Data can never truly understand death . However , Data comments that he has an " off " switch , the presence of which gives him an understanding of death . Graves takes a particular interest in the location of this switch . As the " Enterprise " enters orbit around the planet , Data joins the rest of the away team and informs them that Graves has just died in his arms . Act Three . Back on the " Enterprise " , Data is behaving a little unusual , using more informal , florid language and exhibiting emotional behavior . He has a discussion with Brianon in Ten Forward , revealing how much Graves loved her and showing deep insight , leaving Brianon looking somewhat unsettled . This unusual behavior continues when Data delivers a very personal and dramatic eulogy of Graves in the transporter room , praising him extremely highly . After the funeral , Captain Picard questions Data on his behavior at the funeral , commenting that perhaps Data should not try so hard to emulate Human s . After being dismissed from the ready room , Data smiles , looks appreciatively at the rear end of a female crewmember , and begins to whistles the song from " The Wizard of Oz " that Graves had done previously . Act Four . Suspicion of , and concerns about , Data ' s behavior grow among the crew and his errant behavior escalates as he belittles Wesley Crusher on his age and lack of experience , acting in a remarkably arrogant manner , reminiscent of Ira Graves ' personality . He also mutters under his breath , then lashes out at Picard as he gives Brianon a tour of the bridge , accusing him of coveting her . Picard orders Data to come with him , and after they have left , Troi comments that she felt intense burning jealousy emanating from Data . In the ready room , Picard comments that something is clearly wrong with Data , despite Data protesting that he is " healthy as a Rigellian ox " , and orders him to carry out a self - diagnostic . Data says the diagnostic shows he is fine , but Picard says that , for the first time since he has known Data , he does not believe him . Further engineering tests are carried out by Geordi La Forge as an uncooperative Data ' s insubordination grows . The engineering tests show no problems . Troi comments that it may be a mental health problem rather than a physical problem , and performs a psychotronic stability examination on Data in his quarters , uncovering two disparate personalities present in him . The burgeoning negative personality displayed special hatred of Picard and other authority figures . Without it being stymied , it will forever engulf Data ' s natural personality . Act Five . Despite having been ordered to remain in his quarters , Picard discovers from the computer that Data has gone to Ten Forward . Lieutenant Worf is ordered to go there and keep an eye on Data , but not to interfere with his actions . Picard also orders Dr . Selar to report to his ready room . Data approaches Brianon in Ten Forward – she is planning to disembark at Starbase 6 , and finally reveals that he is Graves , alive in Data ' s mind . He admits that he deactivated Data and transferred his mind into his frame . All his feelings and dreams were retained and he dismisses Brianon ' s assertion that he will not be able to get away with it . Picard , however , has begun to understand what has happened . Data / Graves talks with Brianon about the wonder of having a new body , musing on what he may accomplish in the next thousand years . He offers to build Brianon an android body as well , so they can remain together forever . Data / Graves is rebuffed however , and leaves Ten Forward . Picard confronts Data / Graves in engineering . Graves dismisses Data ' s right to life and warns the captain not to approach . As Picard does so , he sees that Graves has already attacked La Forge and rendered him unconscious . Picard implores Graves that he has gone too far , physically injuring Brianon ' s hand in the process . As Picard ramps up his case for Graves to give back Data , Graves reaches tipping point and strikes the captain across the face , knocking him unconscious . This act seems to shock Graves , who is disturbed that he keeps injuring people in anger . Upon being revived , Picard tracks Data to his quarters . When they find Data laid on the floor , La Forge cautiously approaches and wakes Data . It is immediately apparent that he is back to his former self . Brianon discerns from the monitors that Graves has deposited himself into the ship ' s computer , though the conscious Human element has been lost . Data has no memory of the time in which he was infested with Graves ' personality and worries that he might have behaved in a manner unbecoming of a Starfleet officer . As Commander Riker jokingly tries to persuade Data that he may have wrestled with a targ , the " Enterprise " leaves orbit of Starbase 6 . Memorable quotes . " " When I stroke the beard thusly , do I not appear more intellectual ? " " " " A man is ill , captain . Treating him is my priority one , regardless of who he is . " " " " Women aren ' t people ! They ' re women ! " " " " Call me grandpa ! Seems more . . . touching . . . in my final hours . " " " " Oh , listen to me . A dying man takes the time to mourn a man who will never know death . Funny , isn ' t it . " " " " I can safely say , that to know him , was to love him . And to love him , was to know him . . . " " Those who knew him , loved him , while those who did not know him , loved him from afar . " " " " So long as men can breathe , or eyes can see , so long lives this , and this gives life to thee . " " " " Do I have to stand here and be insulted ? " " " " He ' s not simply an android - he ' s a life form , entirely unique . " " " " Data is not Human ! He ' s . . ! " " " " He is different , yes ! But that does not make him expendable or any less significant . No being is so important that he can usurp the rights of another ! Now set him free ! " " " " How many . . . how many more " accidents " ? " " " " Does wrestling with a Klingon targ ring a bell ? " " " " Mr . Crusher , take us out of orbit . " " " " Aye , sir . " " " " Did I win ? " " Links and references . References . " As You Like It " ; beard ; brain ; ; cyberfluidic coupler ; cybernetic s ; Darnay ' s disease ; dog ; deactivation switch ; Earth ; Gravesworld ; Grim Reaper ; hypoxia ; " If I Only Had a Heart " ; intestine s ; Klingon ; liner ; molecular cybernetics ; NCC - 7100 ; nDNA ; near - warp transport ; nervous system ; number one ; paranoia ; PhD ; priority one ; psychotronic stability examination ; purgatory ; Rigellian ox ; robot ; Romulan ; Shakespeare ' s sonnets ; ; shock ; ; Starbase 6 ; Starfleet Academy ; synapse ; targ ; Tin Woodman ; transport ; " "