Star Trek: The Next Generation1987

Samuel Clemens:
Where are we? And when?

Commander William T. Riker:
This is the 24th century, we're on Devidia II, and you're not supposed to be here.

Samuel Clemens:
Well, it seems to me I have as much right to be in your time as you had to be in mine. I wanted to see how you've conducted my future affairs.

Counselor Deanna Troi:
Your future affairs?

Samuel Clemens:
The affairs of mankind.

Commander William T. Riker:
But the disappearance of Mark Twain, one of the most noted literary figures of the 19th century...

Samuel Clemens:
Thank you.

Commander William T. Riker:
That's not supposed to happen.

Samuel Clemens:
I only took advantage of an irresistible opportunity, as any good writer would.