Quotes by Immanuel Kant

• 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.
• Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.
• Science is organized knowledge. Wisdom is organized life.
• I have no knowledge of myself as I am, but merely as I appear to myself.