I try to live by this mantra when possible, real simple shit too. Don't be a dick to someone unless they're being a dick to you, just generally be a decent person really.

"The main reason santa is so jolly is because he knows where all the bad girls live" George Carlin

Probably the ending narrative of Dead Money. "Finding it though, that's not the hard part. It's letting go."

If you're going for something deep and thoughful.

Then there's always "Yippeekiyay motherfucker"

"The more you know, the more you realise that you know nothing."
I love learning things, i am always reading and watching stuff that add more knowledge, and while you learn more, you do realise that you know almost nothing about it.
The universe is my favorite subject, it makes me feel depressed when i learn more of it, because you realise, that i will never put a foot outside earth, and even if i do, i will be just a tiny little thing, smaller than a atom to the universe, if you think about it, our lifes are insignificant, we born, grow, live, die, and the universe will go on, an on... You learn physics, you learn more, and more, and more, and you will never learn it all, but what you learn it wil never be enought, you don't know anything... So this quote is not only my favorite, but it enlightened me so much, it is hard to explain

“You must be shapeless, formless, like water. When you pour water in a cup, it becomes the cup. When you pour water in a bottle, it becomes the bottle. When you pour water in a teapot, it becomes the teapot. Water can drip and it can crash. Become like water my friend.”-Bruce Lee

We knew the world would not be the same. A few people laughed, a few people cried, most people were silent. I remembered the line from the Hindu scripture, the Bhagavad-Gita; Vishnu is trying to persuade the Prince that he should do his duty and, to impress him, takes on his multi-armed form and says, "Now I am become Death, the destroyer of worlds." - Robert Oppenheimer

This is one of the greatest speaches of all time. for me it's up there with winston churchhills we'll fight them on the beaches speach and Martin Luther King's Ihave a dream.

Charlie Chaplin's Great Dictator speach.:

I am tired and sick of war. Its glory is all moonshine. It is only those who have neither fired a shot nor heard the shrieks and groans of the wounded who cry aloud for blood, for vengeance, for desolation. War is hell.
-William Tecumseh Sherman

"We have no nation, no philosophy, no ideology. We go where we're needed, fighting not for country, not for government, but for ourselves. We need no reason to fight. We fight because we are needed. We will be the deterrent for those with no other recourse. We are soldiers without borders, our purpose defined by the era we live in"- Big Boss/naked snake

"The only thing necessary for the triumph of evil is for good men to do nothing."
-Edmund Burke

"War does not determine who is right, only who is left."
~Bertrand Russell

Eppur si muove.

"And yet it moves."

~attributed to Galileo Galilei

"Chill out... dickwad."

"I have not yet begun to fight" - John Paul Jones

"May God have mercy upon my enemies, because I won't." - General George Patton

"Home? We can’t go home. There’s a line men like us have to cross. If we’re lucky, we do what’s necessary, and then we die. No…all I really want, Captain, is peace."
— John Konrad

"Mama don't like tattletales"-they live

"Whatever in creation exists without my knowledge exists without my consent."
- Cormac McCarthy (Judge Holden)

"That woman deserves her revenge. And we deserve to die."
-Budd Kill Bill movie

"Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen."
-Winston Churchill
Truly Winston was veritable quote machine.

"And when Santa squeezes his fat white ass down that chimney tonight he's gonna find the jolliest bunch of assholes this side of the nuthouse."-Clark Griswold