Immanuel Kant – Cruelty to animals Share this quote: He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals. – Immanuel Kant (1724-1804) Is this quotation insightful, though-provoking, useful? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0