Real stupidity beats artificial intelligence every time.
Racism was not a problem on the Discworld, because - what with trolls and dwarfs and so on - speciesism was more interesting. Black and white lived in perfect harmony and ganged up on green.
Divide by cucumber error. Please reinstall universe and reboot.
I am death, not taxes. I turn up only once.
In ancient times cats were worshiped as gods; they have not forgotten this.
Picturesque meant - he decided after careful observation of the scenerey that inspired Twoflower to use the word - that the landscape was horribly precipitous. Quaint, when used to describe the occasional village through which they passed, meant fever-ridden and tumbledown. Twoflower was a tourist, the first ever seen on the discworld. Tourist, Rincewind had decided, mean 'idiot'.
Only in our dreams are we free. The rest of the time we need wages.
The universe is, instant by instant, recreated anew. There is in truth no past, only a memory of the past. Blink your eyes, and the world you see next did not exist when you closed them. Therefore, the only appropriate state of the mind is surprise. The only appropriate state of the heart is joy. The sky you see now, you have never seen before. The perfect moment is now. Be glad of it.
Of course, Ankh-Morpork's citizens had always claimed that the river water was incredibly pure. Any water that had passed through so many kidneys, they reasoned, had to be very pure indeed.
Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.
There's a saying that all roads lead to Ankh-Morpork. And it's wrong. All roads lead away from Ankh-Morpork, but sometimes people just walk along them the wrong way.
...inside every old person is a young person wondering what happened.
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.
Sometimes it is better to light a flamethrower than curse the darkness.
Just erotic. Nothing kinky. It's the difference between using a feather and using a chicken.
Fantasy is an exercise bicycle for the mind. It might not take you anywhere, but it tones up the muscles that can.
...it is well known that a vital ingredient of success is not knowing that what you're attempting can't be done.
The presence of those seeking the truth is infinitely to be preferred to the presence of those who think they've found it.
You need to believe in things that aren't true. How else can they become?
"Multiple exclamation marks," he went on, shaking his head, "are a sure sign of a diseased mind."
Well, basically there are two sorts of opera," said Nanny, who also had the true witch's ability to be confidently expert on the basis of no experience whatsoever. "There's your heavy opera, where basically people sing foreign and it goes like "Oh oh oh, I am dyin', oh I am dyin', oh oh oh, that's what I'm doin'", and there's your light opera, where they sing in foreign and it basically goes "Beer! Beer! Beer! Beer! I like to drink lots of beer!", although sometimes they drink champagne instead. That's basically all of opera, reely.
Words are the litmus paper of the mind.
If you trust in yourself. . .and believe in your dreams. . .and follow your star. . . you'll still get beaten by people who spent their time working hard and learning things and weren't so lazy.
The shortest unit of time in the multiverse is the New York Second, defined as the period of time between the traffic lights turning green and the cab behind you honking.
Gravity is a habit that is hard to shake off.
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