Brentand Russell was once discussing the 'Earth Surrounding the Sun'.
Amidst the discourse, an old man stood up and challenged Russel's words, 'Goodness youthful, you are very canny. There is no uncertainty in this. In any case, we don't have the foggiest idea about that the world is straightening and it is carrying on the back of the tortoise.
Russell was astounded to catch wind of the old man. The inquiry is OK. So you said now, what is the tortoise remain on?
The old man said somewhat stressed and stated, 'I let you know, and you learn it!'