Gotta love when I order a Predator to attack and he reports,
"There will be nothing left to bury"

'Enough! I have made my choice.'

Horus, to Magnus and Erebus

And of course, the classic:


View: https://www.youtube.com/watch?v=cO3MttgvHUY

"Without the light of Chaos, the universe would stagnate and collapse. Only through this struggle, can any advancement occur." — From the Book of Magnus

"Faithful... enlightened... ambitious... brethren.
In but a single decade, a few mere swipes of the pendulum, we have gathered a sacrifice to Khorne that will be made legend.
Though it was a simpler, weaker voice that illuminated me during my centuries upon the Judgement of Carrion...
...it was Khorne's messenger that showed me the true path of freedom from our pathetic corpse-Emperor.
And what is this path? This meaning, this purpose to which we gather the skulls of our foes?
It is nothing. There is no meaning, no purpose. We murder. We kill. It is mindless savagery, this UNIVERSE IS MINDLESS!
In mere hours, billions will die. Innocent! Guilty! Strong and weak! Honest and deceitful! ALL of them!
They will scream, they will burn, and for no purpose but that mighty Khorne may revel in their bloodshed!
And united in this void of purpose, fear, or duty... we shall at long last be free!
Blood for the Blood God! Skulls for the Skulls Throne! LET THE GALAXY BURN!"
- Azariah Kyras, Heretic Chapter Master/Chief Librarian of the Blood Ravens...Librarians of Khorn. Hehehe.
Also, "SANITY IS FOR THE WEAK!" Is also up in my favorite quotes.

From DoW 1: I feel the powers overtaking me, it is a good pain

or from both DoW 1 and 2. (DoW1, chaos squad with champion) DO YOU HEAR THE VOICES TOO? (DoW2, Plague marine champion) Do you hear the voices too?

The Plague marine was a little apathetic about the voices...the possessed driven to madness by them which is odd since modern Possessed are just another form of Daemon Host...which means it seems like the Daemon is taunted by Voices

MEHTULL BWOXESS!!!!!!!!!!

“Though the gates that stand between the mortal world and the immortal Realm of Chaos are now closed to me, still I would rather die having glimpsed eternity than never to have stirred the cold furrow of mortal life.
I embrace death without regret as I embraced life without fear.” -Kargos Bloodspitter

Got a real carpe diem note to it. Reminds me of that other one that sounds Imperial:

"Do not waste your tears. I was not born to watch the world grow dim. Life is not measured in years, but by the deeds of men."

I don't think it's ever been specifically attributed, but I like the idea that it was of Macharius on his deathbed.

With the thirty-seven keys of tzeench, we open the way for our brothers.
With the thousand whispers of slaneesh, we call to them.
With the Twelve plauges of nurgle, we fell their enemies.
and with the mighty axe of khorne, we cut open a world for them.
: From un-named Sorcerer from Dawn of war, Dark crusade