In spite of some fevered responses, the Old Taboo post does indeed discuss “Do What Thou Wilt” without an obligatory “shall be the whole of the Law” added at the end or followed by “Love is the law, love under will”. Take a gander at paragraph two at the source.
But, these also may be of additional interest for those having an artificial allergy attack:
“Hoor hath a secret fourfold name: it is Do What Thou Wilt.” — T Polyphilus, Service Celebrating the Feast for the Supreme Ritual
See also AL III,49.
“There is no law beyond Do what thou wilt.” — AL III,60
Here’s a google search for occurrences at hermetic.com of the words “do what thou wilt”.
That search further demonstrates use of those four words other than just the way they appear as an excerpt from AL I,40 including in several other libri.
And, indeed, the phrase “Love is the law, love under will” appears elsewhere at AL I,57.