拳怕少壯, 棍怕老郎
The fist fears the young and vigorous, the stick the old gentleman.
身體力行
A body acts according to physical strengths1.
讀萬卷書不如行萬里路
It's better to walk thousands of miles than to read thousands of books2.
An
old martial saying states that experience itself represents half, if
not more, of the value of a warrior.