From "Blink", Series 3 Episode 10:
People assume that time is a strict progression of cause to effect. But actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly-wobbly timey-wimey... stuff. - The Doctor
The Doctor Who Quote of The Day-ish or Thereabouts Forum
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From "Vincent and the Doctor", Series 5 Episode 10:
The way I see it, every life is a pile of good things and... bad things. The good things don't always soften the bad things, but vice versa, the bad things don't necessarily spoil the good things or make them unimportant. And we definitely added to his pile of good things. - The Doctor
From "An unearthly child", very first episode, ever:
Have you ever wondered what it's like to be wanderers in the fourth dimension? —The first doctor
From "Rose" Series 1 Episode 1
Do you know like we were saying? About the Earth revolving? It's like when you're a kid. The first time they tell you that the world's turning and you just can't quite believe it because everything looks like it's standing still. I can feel it. The turn of the Earth. The ground beneath our feet is spinning at a thousand miles an hour. And the entire planet is hurtling around the sun at sixty-seven thousand miles an hour and I can feel it. We're falling through space, you and me. Clinging to the skin of this tiny little world and if we let go ... {he drops her hand}. That's who I am.
Jun 19, 2018
0
#7
hi
spockter-who! I have that quote on a T shirt! Also in my T shirt collection are Knock Knock, Whos there? The Doctor, an Abbey Road take off with a Dalek and others crossing the road like the Beatles, and a picture of a Dalek with OMG, its R2D2, I loved him in Star Trek
Aug 5, 2018
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#8
This quote is from Knock Knock. Unfortunately, it wasn't included in the episode but is an extra scene. I think that you could find it on Youtube.
[extra scene]
Landlord: Can you help her?
The Doctor: Tell me what happens.
Landlord: It was just before the war. Eliza was dying... nothing could be done... until these creatures saved her. At first, it was a miracle.
The Doctor: And then, they needed food.
Landlord: Twenty years later, the creatures grew dormant.
Landlord: [voice cracking] Eliza was fading...
Landlord: [chokes back a sob, composes, then continues] then a vagrant broke into the house, fell asleep, and the lice... absorbed him! I was horrified! But Eliza grew strong, and I realized what I had to do. It is regrettable, but nobody really misses the students. They're simply assumed to have run away.
The Doctor: And you think your daughter is more important than all of them.
Landlord: Yes, of course! At this moment, you're concerned about your granddaughter, and you would do whatever it took to keep the person you love from death, wouldn't you?
The Doctor: Yes, I would.
Landlord: Then you understand why I must take this course of action!
The Doctor: Oh, I do. I would tear the sky apart. I would reduce the solar system to the tiniest cinder for anyone I love. But if I was about to do that, if I'd got to that point of desperation, then I would have one hope, one desire:
Landlord: Yes?
The Doctor: That someone would stop me.
pass the salt and Dr. pepper or Dr. Who? 
Aug 10, 2020
0
#11
My personal favorite 
“Some people live more in 20 years than others do in 80. It’s not the time that matters, it’s the person.”
— The Doctor, Season 3, Episode 6
Doctor Who says things in about every episode that I'd like to remember. Having a forum on Doctor Who quotes should help me remember them, and amaze my children with my level of Whovian knowledge.
Feel free to post any Dooctor Who quote you like. If you can, post the season/series and episode where they were spoken. It doesn't have to be something the Doctor spoke, either. I'll try to post something daily, mostly.
I found this web site of Doctor Who quotes from the modern series. If someone finds one with all of the older Doctor Who quotes, please post it. I was a teenager when Tom Baker was the Doctor. I don't remember specific things he spoke, but I remember quite a few things he said being funny/enjoyable.
http://www.planetclaire.org/quotes/doctorwho/