mahnmut

William de Worde, a professional scribe who in this novel becomes the editor of the Discworld's first newspaper, The Ankh-Morpork Times, contemplates about people's diverse attitudes to half-full, half-empty glasses; and something more...

There are, it has been said, two types of people in the world. There are those who, when presented with a glass that is exactly half full, say: this glass is half full. And then there are those who say: this glass is half empty.

The world belongs, however, to those who can look at the glass and say: 'What's up with this glass? Excuse me? Excuse me? This is my glass? I don't think so. My glass was full! And it was a bigger glass!'

And at the other end of the bar the world is full of the other type of person, who has a broken glass, or a glass that has been carelessly knocked over (usually by one of the people calling for a larger glass), or who had no glass at all, because they were at the back of the crowd and had failed to catch the barman's eye.

(From The Truth by Terry Pratchett)