... This is the intolerance of the physician who is prejudiced against viruses because he has seen an epidemic ravage a people. This is the intolerance of a mother who fiercely protects her little ones from predators. She suffers from a bias against rattlesnakes and wolves. This apparent narrowness is the wisdom of those who have known many roads and have found only one sure route out of the regions of desolation.
(From A Landscape With Dragons by Michael D. O'Brien, p. 161-163)