Quote by Immanuel Kant: Ingratitude is the essence of meanness

• He who makes himself a worm cannot complain when others step on him with their shoes.

• Anything written by men about women should remain suspect, as they are both the judge and the subject of the case.

• I had to reject recognition to make room for faith.

• Man must be disciplined, because by nature he is raw and wild.

• Whoever is cruel to animals is equally insensitive to people.

• An action, to be morally worthy, must be done out of responsibility.

• The rules of happiness: something to do, someone to love and something to hope for.

• Act by considering humanity, both in yourself and in others, always as an end, never simply as a means.

• There is no virtue so great that it is safe from temptation.

• Those who say that the world will always go on as it has gone up to now, contribute to their prediction coming true.

• The stars of heaven above me, the moral law in me.

• Friends of humanity, do not deny reason the privilege of being the last touchstone of comparison with truth.

• Act in such a way that your principle of action becomes by itself a law for the whole world.

• All our knowledge begins with the senses, then proceeds to understanding and ends with reason. There is nothing higher than reason.

• All the interests of my reason, speculative as well as practical, are combined in the following three questions: 1. What should I know? 2. What should I do? 3. What can I expect?

• Experience without theory is blind, but theory without experience is a genuine intellectual game.

• From such crooked wood as this man is made of, nothing righteous can be created.

• Happiness is not an ideal of reason, but of imagination.

• Immaturity is the inability to use one's own intelligence without being guided by someone else.

• Before the law, a person is guilty when he violates the rights of others. He is morally guilty if he even thinks of doing this.

• Ingratitude is the essence of meanness.

• Beyond any doubt, all knowledge begins with experience.

• It is not only God's will that makes us happy, but we must make ourselves happy.
• It is imperative that I live happily, but it is imperative that as long as I live, I live with honor.

• Science is organized knowledge; wisdom is organized life.