The person concerned sounds – to be polite – eccentric." "That would be polite to the point of over-generosity," Tefwe said. "Awkward, tetchy and unr… - Iain Banks

"I could try composing wonderful musical works, or day-long entertainment epics, but what would that do? Give people pleasure? My wiping this table gives me pleasure. And people come to a clean table, which gives them pleasure. And anyway" - the man laughed - "people die; stars die; universes die. What is any achievement, however great it was, once time itself is dead? Of course, if all I did was wipe tables, then of course it would seem a mean and despicable waste of my huge intellectual potential. But because I choose to do it, it gives me pleasure. And," the man said with a smile, "it's a good way of meeting people. So where are you from, anyway?"

Apparently I am what is known as an Unreliable Narrator, though of course if you believe everything you're told you deserve whatever you get.

Filhyn smiled. “Is it not always better to tell the truth though, Representative?”
Errun looked at her, shook his head. “The truth? No matter what? For good or ill? Are you mad? I do hope you’re having a joke with me here, young lady….Don’t pretend you are so naive, Filhyn. The truth is not always useful, not always good. It’s like putting your faith in water. Yes, we need the rain, but too much can sweep you away in a flood and drown you. Like all great natural, elemental forces, the truth needs to be channelled, managed, controlled and intelligently, morally allocated.” He glared at her. “You are having a joke with me, aren’t you?”
I might as well be, she thought. She wondered if she would finally be a real politician when she agreed with what Errun was saying.