"Development of mathematics resembles a fast revolution of a wheel: sprinkles of water are flying in all directions. Fashion—it is the stream that leaves the ma

"Development of mathematics resembles a fast revolution of a wheel: sprinkles of water are flying in all directions. Fashion—it is the stream that leaves the main trajectory in the tangential direction. These streams of epigone works attract the most attention, and they constitute the main mass, but they inevitably disappear after a while because they parted with the wheel. To remain on the wheel, one must apply the effort in the direction perpendicular to the main stream."