Thanos Quotes in Avengers: Infinity War (2018)

Thanos: Fun isn't something you consider when trying to balance the universe...

[faces off with the Avengers]

Thanos: !

Thanos: ...but this does put a smile on my face!

Ronan: I only ask that you take this matter seriously.

Thanos: The only matter I do not take seriously, boy, is you. Your politics bore me! Your demeanor is that of a pouting child. And apparently you alienated my favorite daughter, Gamora. I shall honor our agreement, Kree, if you bring me the Orb. But return to me again empty handed and I will bathe the star-ways with your blood.

Nebula: Thanks, Dad. Sounds fair.

Thanos: Boy, I would reconsider your current course!

Ronan: [wields the Infinity Stone] You call ME, boy? I will unfurl one thousand years of Kree justice on Xandar and burn it to its core! Then, Thanos, I'm coming for you!

[post-credits]

Thanos: Fine. I'll do it myself.

[post credits scene]

Thanos: Fine, I'll do it myself.

Thanos: [to Alexis, after Phaedra has told him the truth about her affair with Alexis] My whole life... my whole life, you make my whole life DIRTY!