Well, I have a gigantic list of such quotes, a good chunk of which most of you stole! *grumble grumble* I'll scrounge up what I can even if they don't all fall into the 3 example reasons you thought of OP:
"That THERE [accent] is a hydroelectric plant" - Joel (The Last of Us)
What can I say? It came off funnily to me.
"What are you doing?" - Iroh
"I--I'm mugging you!" - Mugger
"With that stance? - Iroh
(Avatar: The Last Airbender)
"The person who agrees with you 80 percent of the time is a friend and an ally - not a 20 percent traitor." - Ronald Reagan (Said as chastisement to his staff for canceling an opponent's meeting with him, then Governor Reagan.)
"I've started a drinking game. Every time people use the term plot hole wrong, take a shot."- TheFirefox( http://www.gamespot.com/heavy-rain/forum/top-15-heavy-rain-plot-holes-53753623/)
Seriously. So widely misused.
"A lot of people are afraid of heights. Not me, I'm afraid of widths." -Steven Wright
I know nothing about this guy and I doubt he meant this in the way it made me think. Still, things that tower over you aren't as scary to me as things with wide reach. The latter exerts power across the board versus the former's narrow field, supported mainly by intimidating stature rather than intimidating reality.
?Discussion is an exchange of knowledge; an argument an exchange of ignorance.?-Robert Quillen
"It's for the good of everyone."- Xion
"But how do you know that? Everybody THINKS they're right! - Axel (Kingdom Hearts 358/2 Days)
"If I'm going to have a past I prefer it to be multiple choice!" - Joker (The Killing Joke)
I probably should try not to include more quotes from things I haven't read and people I don't actually know that well, haha.
"The arc of science is long, and it bends toward accuracy"- Jeffrey Weiss (http://www.realclearreligion.org/articles/2011/11/16/the_truth_about_fraudulent_scientists.html)
"We live in a scientific age, yet we assume that knowledge of science is the prerogative of only a small number of human beings, isolated and priest-like in their laboratories. This is not true. The materials of science are the materials of life itself. Science is part of the reality of living; it is the way, the how and the why for everything in our experience."- Rachel Carson
"We live in a society absolutely dependent on science and technology and yet have cleverly arranged things so that almost no one understands science and technology. That's a clear prescription for disaster" - Carl Sagan
"Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less."- Marie Curie
"You can tell if you're becoming an adult by how much your email count increases by" - Me
Let me indulge myself.
?Tell me and I forget.
Teach me and I remember.
Involve me and I learn.? - Ben Franklin
"One thing nothing can destroy is our pride deep inside. We are one." -Simba (Lion King II)
I view things as they are, without regard to place or person; my country is the world, and my religion is to do good. - Thomas Paine
?Quis custodiet ipsos custodes?? - Juvenal (I think the original source is unknown but he is believed most likely)
"The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane."-Nikola Telsa
"If you see something that's not possible, make it possible. If not now, then when? If not me, then who?"- Mick Ebeling
"We must accept finite disappointment but never lose infinite hope? - Martin Luther King Jr.
"Whatever doesn't kill you...will probably try again" - No idea
?I would request that my body in death be buried not cremated, so that the energy content contained within it gets returned to the earth, so that flora and fauna can dine upon it, just as I have dined upon flora and fauna during my lifetime?- Neil deGrasse Tyson