No one's policing their own minds more than an author. You spend a lot of time in your own head analysing what you think about things, and a philosophy comes.

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.

The worst thing you can do is nothing.

There are times in life when people must know when not to let go. Balloons are designed to teach small children this.

Rincewind had always been happy to think of himself as a racist. The One Hundred Meters, the Mile, the Marathon -- he'd run them all.

Rincewind could scream for mercy in nineteen languages, and just scream in another forty-four.

Tourist, Rincewind decided, meant ‘idiot.

...and the funny thing was that people who weren't entirely certain they were right always argued much louder than other people, as if the main person they were trying to convince were themselves.

The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it.

I have, before now, waited for a pen to perform a macro.

You never knew about people, like you never knew how deep a pond was because all you saw was the top.

Black and white is salt and pepper of colors, for life tastes bland without them.

Under my plan of a cap-and-trade system, electricity rates would necessarily skyrocket.

Great and unexpected successes are often the cause of foolish rushing into acts of extravagance.

I like to make movies I like to watch.

When we perfect 3-D copiers and they reproduce tissue, we'll have a million Marilyns walking around with no souls.

If you want to be a conduit for God's grace, you don't have to be lined with gold. Copper will do.

A passionate interest in what you do is the secret of enjoying life...whether it is helping old people or children, or making cheese or growing earthworms.

Nobody ever lies about being lonely.

We are all driven by an invisible whip. Some run, some have fun, some are hip, some tip, some dip, but we all must answer to the invisible whip.

Free speech exercised both individually and through a free press, is a necessity in any country where people are themselves free.