Who said "History repeats itself unless you break the cycle."?

This quote is attributed to Nebula.

History repeats itself unless you break the cycle. - Nebula

"History repeats itself unless you break the cycle."

Nebula History

"I didn't ask for this life."

"You're welcome."

"I will kill you slowly."

"Gamora may have stolen your money, but I will steal your life."

"I've seen a lot of things in my time."

"That's how we archaeologists tell time."

"We must learn from history or be doomed to repeat it."

"Every artifact tells a story."