Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness. 483
But although all our knowledge begins with experience, it does not follow that it arises from experience. 526
Intuition and concepts constitute… the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge. 391
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason. 439
