The Colour of Magic Vol. 1, No. 1 - Scott Rockwell, Steven C. Ross, Terry Pratchett
"“He talks pretty big for a gutter wizard," he muttered.
"You don't understand at all," said the wizard wearily. "I'm so scared of you my spine has turned to jelly, it's just that I'm suffering from an overdose of terror right now. I mean, when I've got over that then I'll have time to be decently frightened of you.” "