每個生物活著總比死了好，人、駝鹿和松樹，正確理解它的人寧願保護其生命，也不願毀滅它。
—亨利．大衛．梭羅（美國作家）
“Every creature is better alive than dead, men and moose and pine trees, and he who understands it aright will rather preserve its life than destroy it.”
—Henry David Thoreau, American writer
