Crowley’s lamer later years

In his lame later years, Crowley stopped doing and started proselytizing. He changed from Challenge Mode to Apologetics and Thelema-Thomism. Was he being a philosopher? Nope—he knew that ethical matters (metaphysics of morals) are higher on the Kantian scale that theoretical philosophy (metaphysics of substance, causality, and God). You cannot theorize ought from is; you can only theorize ought from ought.

Aleister Crowley," "The Law of Liberty

I am often asked why I begin my letters this way. No matter whether I am writing to my lady or to my butcher, always I begin with these eleven words. Why, how else should I begin? What other greeting could be so glad? Look, brother, we are free! Rejoice with me, sister, there is no law beyond Do what thou wilt!