It is said that whomsoever the gods wish to destroy, they first make mad. In fact, whomsoever the gods wish to destroy, they first hand the equivalent of a stick with a fizzing fuse and Acme Dynamite Company written on the side. It's more interesting, and doesn't take so long.

The girls were expected to grow up to be somebody's wife. They were also expected to read and write, those being considered soft indoor jobs that were too fiddly for the boys.

Wisdom comes from experience. Experience is often a result of lack of wisdom.

I've often felt depressed; everyone feels depressed.

Books bend space and time. One reason the owners of those aforesaid little rambling, poky secondhand bookshops always seem slightly unearthly is that many of them really are, having strayed into this world after taking a wrong turning in their own bookshops in worlds where it is considered commendable business practice to wear carpet slippers all the time and open your shop only when you feel like it.

I'd like to sell a lot of books.

I think when people mean that Discworld books have become darker they really mean the series is growing up. In 'The Colour of Magic' most of the city is set alight. It's a joke, in much the same way that the Earth is destroyed almost at the start of Douglas Adams's 'The Hitchhikers Guide to the Galaxy.'