Immanuel Kant (April 22, 1724 - February 12, 1804) was a German philosopher, astronomer, one of the founders of the nebular theory, and a representative of German classical philosophy. Founder, idealist, agnostic, founder of German classical aesthetics. He is considered one of the most influential thinkers on modern Europe and the last major philosopher of the Enlightenment. "There are two things. The more deeply and persistently I think about them, the wonder and awe they arouse in my soul will grow and grow with each passing day. These are the starry sky above my head and the moral law in my heart." It comes from The last chapter of Kant's "Critique of Practical Reason" is engraved on Kant's tombstone. I think this is what Kant thought of when he looked up at the stars.