It's turtles all the way down

A snail of snails or a shell of shells.

I know what you are thinking - why hasn't he done a spiral made out of spirals of snails? Because, my friend, I am planning a spiral made out of spirals made out of spirals of snails.

Or am I already looking past that?



From Steven Hawking's A Brief History of Time:
A well-known scientist (some say it was Bertrand Russell) once gave a public lecture on astronomy. He described how the earth orbits around the sun and how the sun, in turn, orbits around the center of a vast collection of stars called our galaxy. At the end of the lecture, a little old lady at the back of the room got up and said: "What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise." The scientist gave a superior smile before replying, "What is the tortoise standing on?" "You're very clever, young man, very clever," said the old lady. "But it's tortoises all the way down!"

(It's turtles really..)