“There's nothing more addictive than being a god.”

Addicted to Addicts http://www.city-journal.org/html/9_1_sndgs01.html (Winter 1999).
City Journal (1998 - 2008)

Totem and Taboo : Resemblances Between the Mental Lives of Savages and Neurotics (1913)
1910s

Source: Stargirl

Source: Democracy in America

As quoted in Love and Live Or Kill and Die: Realities of the Destruction of Human Life (2009) by James H. Wilson, p. 72
Variants:
Strongest is Necessity because it governs all things.
As quoted in Symbolism of the Sphere: A Contribution to the History of Earlier Greek Philosophy (1977), by Otto Brendel p. 36
Nothing is more active than thought, for it travels over the universe, and nothing is stronger than necessity for all must submit to it.
As quoted in Business Management Controls: A Guide (2012) by John Kyriazoglou, p. 55
Context: Nothing is more ancient than God, for He was never created; nothing more beautiful than the world, it is the work of that same God; nothing is more active than thought, for it flies over the whole universe; nothing is stronger than necessity, for all must submit to it.

Isaac Asimov's Science Fiction Magazine, April 1990, p.6
General sources

Before Turning the Gun on Himself (2012)