What are the eight calligraphy skills created by Ouyang Xun?

The "eight tactics" are:

(Point) is like a falling stone from a peak;

(Heng Ge) is like a crescent moon in the sky;

(Horizontal) is like a cloud array thousands of miles away;

(Vertical) is like a long-lived withered vine;

(Vertical Ge) is like a strong pine tree that has been bent upside down and hung on a stone cliff;< /p>

(Break) like a crossbow hair;

(Leave) like a sharp sword to break the horns and tusks of a rhinoceros;

(捺) A wave of three. Pass the pen.