Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.Immanuel Kant
But although all our knowledge begins with experience, it does not follow that it arises from experience.Immanuel Kant
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.Immanuel Kant