Terry Pratchett

The whole of life is just like watching a film. Only it's as though you always get in ten minutes after the big picture has started, and no-one will tell you the plot, so you have to work it out all yourself from the clues.

Joy is to fun what the deep sea is to a puddle. It’s a feeling inside that can hardly be contained.

The landscape was snow and green ice on broken mountains. These weren't old mountains, worn down by time and weather and full of gentle ski slopes, but young, sulky, adolescent mountains. They held secret ravines and merciless crevices. One yodel out of place would attract, not the jolly echo of a lonely goatherd, but fifty tons of express-delivery snow.

Albert grunted. "Do you know what happens to lads who ask too many questions?" Mort thought for a moment. "No," he said eventually, "what?" There was silence. Then Albert straightened up and said, "Damned if I know. Probably they get answers, and serve 'em right.

Night poured over the desert. It came suddenly, in purple. In the clear air, the stars drilled down out of the sky, reminding any thoughtful watcher that it is in the deserts and high places that religions are generated. When men see nothing but bottomless infinity over their heads they have always had a driving and desperate urge to find someone to put in the way.

Studies have shown that an ant can carry one hundred times its own weight, but there is no known limit to the lifting power of the average tiny eighty-year-old Spanish peasant grandmother.

Time is a drug. Too much of it kills you.

...the proliferation of luminous fungi or iridescent crystals in deep caves where the torchlessly improvident hero needs to see is one of the most obvious intrusions of narrative causality into the physical universe.

Divers alarums and excursions', she read, uncertainly. 'That means lots of terrible happenings, said Magrat. 'You always put that in plays.' Alarums and what?', said Nanny Ogg, who hadn't been listening. Excursions', said Magrat patienly. Oh.' Nanny Ogg brightened a bit. 'The seaside would be nice,' she said. Oh do shut up, Gytha,' said Granny Weatherwax. 'They're not for you. They're only for divers, like it says. Probably so they can recover from all them alarums.

Everywhere I look, I see something holy.

Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH,' the paint wouldn't even have time to dry.

After a while, another voice said: One, two, three, four- And the universe came into being. It was wrong to call it a big bang. That would just be noise, and all that noise could create is more noise and a cosmos full of random particles. Matter exploded into being, apparently as chaos, but in fact as a chord. The ultimate power chord.

Before you can kill a demon, you have to be able to say it's name. Names have power. While the word Alzheimer's terrorizes us, it has power over us. When we are prepared to discuss it aloud, we might have power over it. It's thought of as a mental illness and it is a physical illness, affecting the brain. There should be no shame in having it, yet people still don't talk about it

It's the end game that people dread and that's what I'm scared of

Humans need fantasy in order to be human.

History has a habit of changing the people who think they are changing it

And Sam Vimes thought: Why is Young Sam's nursery full of farmyard animals anyway? Why are his books full of moo-cows and baa-lambs? He is growing up in the city. He will only see them on a plate! They go sizzle!

She was, in fact, quite a pleasant looking girl, even if her bosom had clearly been intended for a girl two feet taller; but she was not Her. The Egregious Professor of Grammar and Usage would have corrected this to "she was not she," which would have caused the Professor of Logic to spit out his drink.

Correct observation followed by meticulous deduction and the precise visualization of goals is vital to the success of any enterprise.

A Duke couldn't have the arse hanging out of his trousers when meeting foreign diplomats. Actually even plain old Sam Vimes never had the arse hanging out of his trousers, either, but no one would have actually started a war if he had.

Logic is a wonderful thing but doesn't always beat actual thought.