一步練錯百步歪。
One stage trained wrongly, a hundred wicked ones.
The more professional and elitist one’s training was, the more attention was paid to details. After all, the rule remains the same nowadays in the real martial world, commando training has nothing to do with regular troops instruction. Therefore, martial artists, in the old days, paid particular attention not to the benefits, but to the defects of their training. Quite the opposite of nowadays leisurely schools with their “if you do it correctly then it’s all good” motto.