Charles Howard Hinton,
The Fourth Dimension
(1906)
“ Let us imagine the cube in our space, which is the base of a tesseract, to turn about one of its edges. The rotation will carry the whole body with it, and each of the cubic sections will rotate. The axis we see in our space will remain unchanged, and likewise the series of axes parallel to it about which each of the parallel cubic sections rotates. The assemblage of all of these is a plane.Hence in four dimensions a body rotates about a plane. There is no such thing as rotation round an axis. ”
