Who said "The real enemy isn't always what you can see."?

This quote is attributed to Corporal Dwayne Hicks.

The real enemy isn't always what you can see. - Corporal Dwayne Hicks

"The real enemy isn't always what you can see."

Corporal Dwayne Hicks Truth

"Game over, man. Game over."

"I say we take off and nuke the entire site from orbit. It's the only way to be sure."

"Get away from her, you bitch!"

"Looks like love isn't the only thing that can grow in the dark."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."