“Happiness is not an ideal of reason, but of imagination.”
“Science is organized knowledge. Wisdom is organized life.”
“We can judge the heart of a man by his treatment of animals.”
“Enlightenment is man’s emergence from his self-incurred immaturity.”
“Out of the crooked timber of humanity, no straight thing was ever made.”
“So act that your principle of action might safely be made a law for the whole world.”
“Act only according to that maxim whereby you can at the same time will that it should become a universal law.”
“All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.”
“Two things fill the mind with ever-increasing wonder and awe, the more often and the more intensely the mind of thought is drawn to them: the starry heavens above me and the moral law within me.”
“All thought must, directly or indirectly, by way of certain characters, relate ultimately to intuitions, and therefore, with us, to sensibility, because in no other way can an object be given to us.”