The thief, as will become apparent, was a special type of thief. This thief was an artist of theft. Other thieves merely stole everything that was not nailed down, but this thief stole the nails as well.

If there were such a thing as an inter-city thieving contest, Ankh-Morpork would bring home the trophy and probably everyone’s wallets.

The petty thief is imprisoned but the big thief becomes a feudal lord.

Enter, stranger, but take heed
Of what awaits the sin of greed,
For those who take, but do not earn,
Must pay most dearly in their turn.
So if you seek beneath our floors
A treasure that was never yours,
Thief, you have been warned, beware
Of finding more than treasure there.

What's a philosopher?' said Brutha.
Someone who's bright enough to find a job with no heavy lifting,' said a voice in his head.

Don't you understand?" snarled Rincewind. "We are going over the Edge, godsdammit!"
"Can't we do anything about it?"
"No!"
"Then I can't see the sense in panicking," said Twoflower calmly.