Slight Correction

Miyamoto Musashi claims to have learned all he knew by practice and reflection. Sounds like Zen to me, or at least the Taoist aspect of Zen, yet he claims to have had no instructors, so I suppose that whatever Zen he absorbed was from the cultural milieu of the Samurai in Medieval Japan. There is that wonderful emphasis on the pursuit of excellence I so admire.

Anybody got any problems with this set of principles (from the Ground Book, linked above)?

Do not think dishonestly.
The Way is in training.
Become aquainted with every art.
Know the Ways of all professions.
Distinguish between gain and loss in worldly matters.
Develop intuitive judgement and understanding for everything.
Perceive those things which cannot be seen.
Pay attention even to trifles.
Do nothing which is of no use.