Do what thou wilt shall be the whole of the Law.

From Liber AL vel Legis Ch. I, v. 26:


Then saith the prophet and slave of the beauteous one: Who am I, and what shall be the sign? So she answered him, bending down, a lambent flame of blue, all-touching, all penetrant, her lovely hands upon the black earth, & her lithe body arched for love, and her soft feet not hurting the little flowers: Thou knowest! And the sign shall be my ecstasy, the consciousness of the continuity of existence, the omnipresence of my body.

{bolding added}

Love is the law, love under will.

Frater LA'AL, Neter Ankh