Quotes from book
The Gray Prince

Thirty thousand years in the future, on the once peaceful planet Koryphon, reformist Uldras pursue their legal and extra-legal crusade for reclaiming tribal lands long ruled by Outkers, colonizing human land barons. Reprint.

“How I hate you. If hate were stone I could build a tower into the clouds.”
Source: The Gray Prince (1975 [serialized 1974]), Chapter 15 (p. 152)

“Often their grievances were real; often they complained from sheer petulance.”
Source: The Gray Prince (1975 [serialized 1974]) Prologue (p. 8)