In Star Trek TNG, Picard delineates the essence of Being-Human quite well in this quote from Shakespeare:
Q: Perhaps maybe a little, uh, Hamlet?
Captain Jean-Luc Picard: Oh, I know Hamlet. And what he might say with irony, I say with conviction: "What a piece of work is man! How noble in reason! How infinite in faculty! In form, in moving, how express and admirable! In action, how like an angel! In apprehension, how like a god!"
Q: Surely, you don't see your species like that, do you?
Captain Jean-Luc Picard: I see us one day becoming that, Q. Is it that which concerns you?
But what lies behind this vision? Is there perhaps a flight from the boredom and tedium of the everyday? Consider when Q transforms Picard's life into that of an ordinary person of no notable station:
Lt. J.G. Jean-Luc Picard: You having a good laugh now, Q? Does it amuse you to think of me living out the rest of my life as a dreary man in a tedious job?
Q: I gave you something most mortals never experience: a second chance at life. And now all you can do is complain?
Lt. J.G. Jean-Luc Picard: I can't live out my days as that person. That man is bereft of passion... and imagination! That is not who *I* am!