“Like the famous mad philosopher said, when you stare into the void, the void stares also; but if you cast into the void, you get a type conversion error. (Which just goes to show Nietzsche wasn't a C++ programmer.)”

Go Rin No Sho (1645), The Book No-Thing-ness
Context: 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. Know well this spirit, and with forthrightness as the foundation and the true spirit as the 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, principle has existence, the Way has existence, spirit is nothingness.

Source: Tropic of Cancer

Go Rin No Sho (1645)
Context: Fifthly, the book of the Void. By Void I mean that which has no beginning and no end. Attaining this principle means not attaining the principle. The Way of strategy is the Way of nature. When you appreciate the power of nature, knowing the rhythm of any situation, you will be able to hit the enemy naturally and strike naturally. All this is the Way of the Void. I intend to show how to follow the true Way according to nature in the book of the Void.

Te asusta el vacío, ¡y abres más los ojos!
Voces (1943)

Go Rin No Sho (1645), The Book No-Thing-ness
Context: What is called the spirit of the void is where there is nothing. It is not included in man's knowledge. Of course the void is nothingness. By knowing things that exist, you can know that which does not exist. That is the void.

Source: Echoes from the Bottomless Well (1985), p. 63

VALIS (1981)

Argument Against the Writs of Assistance (1761)

Source: What I Talk About When I Talk About Running