What is the original Chinese?

故其疾如風，其徐如林，侵掠如火，不動如山，難知如陰，動如雷震。. Translated from the original Chinese by Spartan Surfers.

其疾如風，其徐如林，侵掠如火，不動如山

Swift as wind, quiet as forest, fierce as fire, still as mountain.

Sun Tzu, The Art of War 7 (Maneuvering)

What it means

Four speeds for four moments: fast when moving, calm when waiting, all-in when attacking, immovable when holding. Mastery is knowing which one the moment needs. Takeda Shingen later flew these words on his banner.

The source

"Swift as wind, quiet as forest, fierce as fire, still as mountain." Sun Tzu said it in The Art of War 7 (Maneuvering). Translated from the original Chinese by Spartan Surfers.

"故其疾如風，其徐如林，侵掠如火，不動如山，難知如陰，動如雷震。"

Original Chinese, The Art of War 7 (Maneuvering). Text read at zh.wikisource.org.

Who said it

Sun Tzu (c. 5th century BC). Chinese general traditionally credited with The Art of War, a short book on strategy that values preparation, deception and winning without battle. It has been read by commanders, athletes and founders ever since.

Questions

What does "Swift as wind, quiet as forest, fierce as fire, still as mountain." mean?: Four speeds for four moments: fast when moving, calm when waiting, all-in when attacking, immovable when holding. Mastery is knowing which one the moment needs. Takeda Shingen later flew these words on his banner.
Who said "Swift as wind, quiet as forest, fierce as fire, still as mountain."?: Sun Tzu (c. 5th century BC). Source: The Art of War 7 (Maneuvering).
What is the original Chinese?: 故其疾如風，其徐如林，侵掠如火，不動如山，難知如陰，動如雷震。. Translated from the original Chinese by Spartan Surfers.
Is "Swift as wind, quiet as forest, fierce as fire, still as mountain." on a shirt?: Yes. We print it to order on our tees in 7 illustrated looks, from $44, with free US shipping.

Cite this line

"Swift as wind, quiet as forest, fierce as fire, still as mountain." (Sun Tzu, The Art of War 7 (Maneuvering), translated by Spartan Surfers). https://spartansurfers.com/quotes/swift-as-wind-quiet-as-forest-fierce-as