My Favorite Martial Arts Story

The was a Karate Master named Mas Oyama, who hailed in the martial arts world known as "God's Hand". He sliced bottle-necks, broke rocks, killed bulls in a single blow, defeated hundrerds of martial arts masters around the world. He was one super human fighter.

He traveled to Hong Kong to meet a legendary Tai Chi master. When he arrived the Master was frail and looked as if he belonged in a nursing home. Oyama thought the Master would never except his challenge to fight, but the Master offered to spar with him. Oyama believed he could defeat the old man easily and quickly.

He was was unprepared for the task at hand.

 The Master was able to neutralize all the Karate attacks Oyama could deliver, using smooth circular, arc-like movement and techniques. On the other hand, when the Master counter-attacked, it was with a force that could not have come from a man his age. It was all Oyama could do to evade him, using linear, sometimes awkward movements. Seeing NO sign of fatigue in the old man, and having exhausted all his techniques, Oyama gave up, admitting that he could not beat the Tai Chi Master.

Oyama stayed with the Tai Chi Master to train and revise his personal Karate style.

There was an old saying in 19th century Chinese martial arts circle, "Tai Chi is the hardest kung fu to master, but once it's understood, it is the master of all kung fu's..." 

http://indomaster.nl/taichi-karate.html
Source that I partially plagiarized from lol