“We live and we die, but we are made of sterner stuff. The carbon atoms in our fingernails, the calcium in our bones, the iron atoms in our blood -- all the countless trillions of atoms of which we are made -- are ancient objects. They existed before us, before the Earth itself, in fact. And after each of us dies, they will depart from our bodies and do other things. Forever.”

“We live and we die, but we are made of sterner stuff. The carbon atoms in our fingernails, the calcium in our bones, the iron atoms in our blood -- all the countless trillions of atoms of which we are made -- are ancient objects. They existed before us, before the Earth itself, in fact. And after each of us dies, they will depart from our bodies and do other things. Forever.”

“We live and we die, but we are made of sterner stuff. The carbon atoms in our fingernails, the calcium in our bones, the iron atoms in our blood -- all the countless trillions of atoms of which we are made -- are ancient objects. They existed before us, before the Earth itself, in fact. And after each of us dies, they will depart from our bodies and do other things. Forever.”