I've made a beautiful new blasphemy.

Fiat Ego.

It has elegance and arrogance. Perfect.

Explanation:
"Fiat Lux" is the Latin translation of "Let there be light"--the words with which God created the world. We replace "Lux", for light, with "Ego", for myself or me.

Like it?

EDIT: Another translation by a friend of mine: "By my will, there is myself."