All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason. – Immanuel Kant
Religion is the recognition of all our duties as divine commands. – Immanuel Kant
In every department of physical science there is only so much science, properly so-called, as there is mathematics. – Immanuel Kant
All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope? – Immanuel Kant
Letters are above all useful as a means of expressing the ideal self; and no other method of communication is quite so good for this purpose. In letters we can reform without practice, beg without humiliation, snip and shape embarrassing experiences to the measure of our own desires… – Elizabeth Hardwick