The Go Rin No Sho reference article from the English Wikipedia on 24-Jul-2004
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Go Rin No Sho

Helping orphans the way you would do it
Go Rin No Sho (meaning Book of Five Rings) was written by Miyamoto Musashi, a famous swordmaster of feudal Japan.

It is also known as The Book of the Elements, referring to the individual titles of the chapters, namely Ground, Water, Fire, Wind and Void.