Who said "Loyalty cannot be purchased—it must be earned."?

This quote is attributed to RoboCop.

Loyalty cannot be purchased—it must be earned. - RoboCop

"Loyalty cannot be purchased—it must be earned."

RoboCop Friendship

"I'd buy that for a dollar."

"Serve the public trust. Protect the innocent. Uphold the law."

"I am a law enforcement officer."

"Dead or alive, you're coming with me."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."