Hadit is hidden in Nuit, and knows Her, She being an object of knowledge; but He is not knowable, for He is merely that part of Her which She formulates in order that She may be known.

Aleister Crowley, eds Symonds and Grant, The Magical and Philosophical Commentaries The Book of the Law, II.4

Hermetic quote Crowley The Magical and Philosophical Commentaries on The Book of the Law hadit hidden nuit knows object knowledge not knowable part may be known