Source: Masters of the Maze (1965), Chapter 7 (p. 100)
Quotes from book
Masters of the Maze

Masters of the Maze is a science fiction novel by American writer Avram Davidson, originally published in 1965 by Pyramid Books with a cover by John Schoenherr. The first UK edition, the only hardcover to date, was issued by White Lion in 1974. An American paperback reprint followed from Manor Books in 1976. Ebook editions appeared in 2012, from both Prologue Books and SF Gateway.The novel presents historical and fictional characters as "Guardians" of a maze which malignant, insect-like aliens are seeking to traverse in order to subjugate Earth.
“He who has slain one, will he abstain from slaying many?”
Source: Masters of the Maze (1965), Chapter 5 (p. 68)
Source: Masters of the Maze (1965), Chapter 4 (p. 57)
Source: Masters of the Maze (1965), Chapter 1 (p. 16)
“No greed was comparable to the appeal of self-sacrifice.”
Source: Masters of the Maze (1965), Chapter 10 (p. 143)
Source: Masters of the Maze (1965), Chapter 7 (p. 85)
Source: Masters of the Maze (1965), Chapter 2 (p. 30)
“I can tell you that only a fool destroys useful things merely because he doesn’t like them.”
Source: Masters of the Maze (1965), Chapter 8 (p. 108)
“Experience may be a bitter teacher, but She is a good one.”
Source: Masters of the Maze (1965), Chapter 1 (p. 19)