Who said "Strength comes in many forms."?

This quote is attributed to Nebula.

Strength comes in many forms. - Nebula

"Strength comes in many forms."

Nebula Strength

"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."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."