…Deanna Troi and William Riker in a turbolift…
Deanna Troi: “Have you ever heard Data define friendship?”
Troi: “How did he put it? ‘As I experience certain sensory input patterns, my mental pathways become accustomed to them. The inputs eventually are anticipated and even missed when absent.’”
…Lieutenant Commander Data enters the turbolift and comments on their conversation abruptly ending as soon as he walks in…
Troi: “You’re right. That wasn’t a very nice thing to do.”
Riker: “It’s just that our mental pathways have become accustomed to your sensory input patterns.”
Data: “Hm. I understand. I am also fond of you, Commander. And you as well, Counselor.”"
The Starfleet officers who first activated me on Omicron Theta told me I was an android - nothing more than a sophisticated machine with human form. However, I realized that if I was simply a machine, I could never be anything else; I could never grow beyond my programming. I found that difficult to accept. So I chose to believe… that I was a person; that I had the potential to be more than a collection of circuits and subprocessors. It is a belief which I still hold. -Lt. Commander Data