"Science is organized knowledge. Wisdom is organized life."
"Happiness is not an ideal of reason, but of imagination."
"Live your life as though your every act were to become a universal law."
"It is not God's will merely that we should be happy, but that we should make ourselves happy."
"Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness."
"I had therefore to remove knowledge, in order to make room for belief."
"All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason."