In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature.
Carl SaganEach of us is a tiny being, permitted to ride on the outermost skin of one of the smaller planets for a few dozen trips around the local star.
Carl SaganCoal, oil and gas are called fossil fuels, because they are mostly made of the fossil remains of beings from long ago. The chemical energy within them is a kind of stored sunlight originally accumulated by ancient plants. Our civilization runs by burning the remains of humble creatures who inhabited the Earth hundreds of millions of years before the first humans came on the scene. Like some ghastly cannibal cult, we subsist on the dead bodies of our ancestors and distant relatives. - Dr. Carl Sagan
Carl Sagan