Our planet does not only turn on itself, but at the same time it turns round the sun at the rate of nearly a hundred thousand miles an hour.

Every second we cover thirty thousand miles.
Men have never invented a cannon ball that could fly so quickly.

You move through space fixed to a projectile which whirls with dizzy speed, and, deceived by your smallness, you think you are living immovable in a dead cathedral.

And this velocity is as nothing compared with others.

The sun round which we turn, flies and flies through space, carrying on by its attraction the earth and the other planets.