Yet if anyone believes that the earth rotates, surely he will hold that its motion is natural, not violent.

Yet if anyone believes that the earth rotates, surely he will hold that its motion is natural, not violent.

然而，如果有人相信地球是自转的，他一定会认为地球的运动是自然的，而不是剧烈的。

-- Nicolaus Copernicus 哥白尼