Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness. – Immanuel Kant
But although all our knowledge begins with experience, it does not follow that it arises from experience. – 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
Science is organized knowledge. Wisdom is organized life. – Immanuel Kant
If the day and night be such that you greet them with joy, and life emits a fragrance like flowers and sweet-scented herbs, is more elastic, more immortal — that is your success. All nature is your congratulation, and you have cause momentarily to bless yourself. – Henry David Thoreau, Walden