We love the material because of the immaterial, part 2

[See part 1 here.]

In its main features the Declaration of Independence is a great spiritual document. It is a declaration not of material but of spiritual conceptions. Equality, liberty, popular sovereignty, the rights of man — these are not elements which we can see and touch. They are ideals. They have their source and their roots in the religious convictions. They belong to the unseen world.

Calvin Coolidge, Address at the Celebration of the 150th Anniversary of the Declaration of Independence in Philadelphia, Pennsylvania, July 5, 1926.