Star Trek: Voyager1995

Crewman Lon Suder:
I'm gonna have to kill some of them.

The Doctor:
It is possible. Violence might be required to retake the ship.

Crewman Lon Suder:
I've worked so... so hard over the last few months, to control the violent feelings. I'm almost at peace with myself. I mean, I see the day coming when I could be.

The Doctor:
Mr. Suder. If Lieutenant Tuvok were here, I know he would tell you there are times when violence is required, to defend yourself, to defend your ship... to defend your crew.

Crewman Lon Suder:
Yes, there is a logical use for violence - for everyone else. For me, once it begins...