"Dig your hands into the earth, and then let the clay and dirt fall to the ground. After a year's passing, can you find that clay again? But drop a stone block, a wooden beam, a fired brick. It will persist a year, and another hundred years beside."  - The Book of the Hammer
"I stood before a tower, of planks and nails and stone carved with fire, and I said, 'surely my eyes behold a miracle, not meant for man,' but the Builder smiled and spake, 'I stand with my mind in Heaven but my feet upon the Earth, and so shall you and your kin.' And I wept, though I knew not why."  - The Book of the Hammer