La fuerza de la gravedad

Galileo descubrió dos leyes del movimiento terrestre, Kepler tres leyes del movimiento planetario y el genial Newton reunió esas leyes y coordino las fuerzas de los cielos con las de la tierra, demostrando, de ese modo, que una manzana cae a tierra (Galileo) por la misma causa que un planeta gira al rededor del Sol (Kepler), por la fuerza de la gravedad. 

– Ken Wilber

The rings of Akhaten

Okay then. That's what I'll do; I will tell you a story. Can you hear them? All these people who lived in terror of you and your judgement. All these people who's ancestors devoted themselves, sacrificed themselves to you. Can you hear them singing? Oh, you like to think you're a god. You're not a god, you're just a parasite, eaten out with jealousy and envy and longing for the lives of other. You feed on them, on the memory of love and loss and birth and death and joy and sorrow! So... So... Come on, then. Take mine. Take my memories. But I hope you've got a big appetite because I've lived a long life and I've seen a few things. I walked away from the Last Great Time War. I marked the passing of the Time Lords. I saw the birth of the universe and I watched as time ran out, moment by moment, until nothing remained. No time. No space. Just me. I walked in universes where the laws of physics were devised by the mind of a madman. I've watched universes freeze and creations burn. I have seen things you wouldn't believe. I have lost things you will never understand. And I know things, secrets that must never be told and knowledge that must never be spoken. Knowledge that will make parasite gods blaze. So come on then! Take it! Take it all, baby! Have it! You have it all!

The girl who waited

You know when sometimes you meet someone so beautiful — and then you actually talk to them and five minutes later they're as dull as a brick; but then there's other people. And you meet them and you think, "Not bad, they're okay," and when you get to know them ... their face just, sort of, becomes them, like their personality's written all over it, and they just — they turn into something so beautiful. Rory's the most beautiful man I've ever met.

Night Terrors

Alex: What's that supposed to mean?

The Doctor: It means I've come a very long way to get here, Alex, a very long way. George sent a message, a distress call if you like. Whatever's inside that cupboard is so terrible, so powerful, that it amplified the fears of an ordinary little boy across all the barriers of time and space.

Alex: Eh?

The Doctor: Through crimson stars and silent stars and tumbling nebulas like oceans set on fire, through empires of glass and civilizations of pure thought and a whole terrible wonderful universe of impossibilities. You see these eyes? They're old eyes. And one thing I can tell you, Alex - monsters are real.

Alex: You're not from Social Services, are you?

The Doctor: First things first. You got any Jammie Dodgers?