“It is difficult to know yourself if you do not know others. To all Ways there are side-tracks. If you study a Way daily, and your spirit diverges, you may think you are obeying a good way, but objectively it is not the true Way. If you are following the true Way and diverge a little, this will later become a large divergence. You must realise this.”
More from Miyamoto Musashi
“You can abandon your own body, but never let go of your honor.”
“Respect the gods without relying on their help.”
“Think lightly of yourself and think deeply of the world.”
“Do not seek pleasure for its own sake.”