"Of course the void is nothingness. By knowing things that exist, you can know that which does not exist. That is the void...

"Until you realise the true Way, whether in Buddhism or in common sense, you may think that things are correct and in order. However, if we look at things objectively, from the viewpoint of laws of the world, we see various doctrines departing from the true Way. Enact strategy broadly, correctly and openly.

"Then you will come to think of things in a wide sense and, taking the void as the Way, you will see the Way as void.

"In the void is virtue, and no evil. Wisdom has existence, principal has existence, the Way has existence, spirit is nothingness."

Musashi, The Book of Five Rings