Thanos

"I know what you're thinking. But Gamora is alive."

"The universe is finite. Resources are finite."

"I could simply snap my fingers, and they'd all cease to exist."

"I'm the only one who knows that."

"Your purpose was always to bring the stones together."

"Failure is the only path I have not taken."

"The stones have made me strong. Too strong, perhaps."

"Majesty of Titan."

"I used the stones to destroy the stones."

"Gratitude. That is perhaps the most human of all emotions."

"I have work to do."

"Your world will thrive. Free from the chaos of overpopulation."

"I will shred this universe down to its last atom."

"Patience is a virtue."

"The universe is at stake."

"My people called me mad. Perhaps. But I am inevitable."

"Every soul the stone demands a soul."

"Strive for perfection, then let it fall away."

"The fabric of reality will fall apart without my guidance."

"I am death itself."

"Your defiance only delays the inevitable."

"Beauty lies in balance."

"I will bring order to the galaxy."

"The pain of loss is exquisite."

"History will remember this day as the day my plan succeeded."

"To do so would require someone even more powerful than I."

"All that for a drop of blood."

"I admire your resolve."

"The universe is grateful for my actions."

"This is inevitable. You cannot stop what is coming."