Who said "I have stared into the abyss and the abyss feared me."?

This quote is attributed to Ronan.

I have stared into the abyss and the abyss feared me. - Ronan

"I have stared into the abyss and the abyss feared me."

Ronan Courage

"I am Ronan the Accuser. I come with Thanos's regards."

"Your ways are not our ways, Xandarian."

"I will kill you all and take great pleasure in it."

"The light of Eon has chosen me as its instrument of justice."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."