To take advantage of the helplessness of so many animals when confronted by man's deadly weapons, cruel snares, or powerful contrivances is a sin. The karmic scales of life will read off an appropriate penalty for it. Ordinary human brutality to these creatures is bad enough but scientific brutality by vivisection is worse.

-- Notebooks Category 6: Emotions and Ethics > Chapter 7: Miscellaneous Ethical Issues > # 9