They flew out of the cloud.
They saw the staggering jewels of the night in their infinite dust and their minds sang with fear.
For a while they flew on, motionless against the starry sweep of the Galaxy, itself motionless against the infinite sweep of the Universe. And then they turned round.
"It'll have to go," the men of Krikkit said as they headed back for home.
On the way back they sang a number of tuneful and reflective songs on the subjects of peace, justice, morality, culture, sport, family life and the obliteration of all other life forms.
Down in the deepest kingdoms of the sea, where there is no light, there lives a type of creature with no brain and no eyes and no mouth. It does nothing but live and put forth petals of perfect crimson where none are there to see. It is nothing except a tiny "yes" in the night. And yet... and yet... it has enemies that bear on it a vicious, unbending malice, who wish not only for its tiny life to be over, but also that it never existed. [...] Now, imagine what they think of humanity.
Evil? No, no, I will not accept that. They are conditioned simply to survive. They can survive only by becoming the dominant species. When all other life-forms are suppressed, when the Daleks are the supreme rulers of the universe - then, you will have peace.
— Davros on his creations, "Genesis of the Daleks"
Henry van Statten: I thought you were the great expert, Doctor. If you're so impressive, then why not just reason with this Dalek? It must be willing to negotiate. There must be something it needs, everything needs something.
Ninth Doctor: What's the nearest town?
van Statten: Salt Lake City.
Ninth Doctor: Population?
van Statten: One million.
Ninth Doctor: All dead. If the Dalek gets out, it'll murder every living creature, that's all it needs.
van Statten: But why would it do that?!
Ninth Doctor: Because it honestly believes they should die. Human beings are different, and anything different is wrong. It's the ultimate in racial cleansing, and you, van Statten, you've let it loose!
— Doctor Who, "Dalek"
This galaxy is unworthy of its Gods; overrun by arrogant, ignorant slaves. It is time to teach them all their place in the great scheme: They will learn to serve their betters... Or die.
— Zuul Dominus, Sword of the Stars
[Coexistence] is a contradiction in terms. There is only one universe, it can contain only one life. Me!
Dr. ██████: Now, why did you kill those farmers?
SCP-682: ...they were... disgusting...
The void is an unutterably vast and inhuman place, a place of ancient dangers and unknown perils. In this cold darkness have bred things as obscene, terrible, and dangerous as any daemon of the warp... In the face of such dire knowledge, you must hold onto this single truth: it is mankindís destiny to rule the stars and rule them alone.