"A man chooses, a slave obeys"
"What is the difference between a man and a parasite? A man builds, a parasite asks 'Where's my share?' A man creates, a parasite says 'What will the neighbors think?' A man invents, a parasite says 'Watch out, or you might tread on the toes of God...'"
Both from the same person. Anyone?
"I've heard others say the same" - Various people in Oblivion
And, of course, this needs no introduction, but it hasn't been mentioned yet:
"My people... Sons and daughters of Helghan...
This much... I vow.
The history of these days will be written in blood.
By crushing the armies of our enemy,
by seizing the weapons they thought to turn against us,
we were fighting for our very existence.
But if there are those who would deny us peace,
refuse us our rightful place in the universe,
than... we will unleash such TERRIBLE VENGEANCE,
THAT GENERATIONS YET UNBORN,
WILL CRY OUT IN ANGUISH!!"