Quote from : Fahrenheit 451 Book

And what lights the sun? Its own fire. And the sun goes on, day after day, burning and burning. The sun and time. The sun and time and burning. Burning. The river bobbled him along gently. Burning. The sun and every clock on the earth. It all came together and became a single thing in his mind. After a long time of floating on the land and a short time of floating in the river he knew why he must never burn again in his life.