Thanos

"I had to be willing to die to save it."

"Some call it genocide, I call it mercy."

"The end of all things has come."

"I will succeed."

"Half the universe will survive. Half will perish."

"I respect your conviction."

"The children of Thanos are scattered like ashes."

"I have been through worse."

"Your universe is already gone."

"I remember it as clearly as if it were yesterday."

"This does put a smile on my face."

"You should have gone for the head."

"I've already won."

"The stone has claimed what it claims."

"I am all-knowing."

"You cannot change your nature."

"The resources you speak of are infinite."

"I will remold the universe in my image."

"Everything has a price."

"My resolve has never been stronger."

"The future is certain."

"Your resistance is futile."

"I will reshape reality itself."

"Wisdom is knowing one's limits."

"The strong survive, the weak perish."

"I am here to fulfill my destiny."

"The infinity stones grant absolute power."

"Even you cannot stop the inevitable."

"I calculate the odds in my favor."

"Your species shows great potential."