The Simonian system can be extracted from the writings of Hippolytus. The cosmos begins with the one root, which is unfathomable Silence, pre-existent, limitless power, existing in singleness. It bestirs itself and assumes a determinate aspect by turning into Thinking (Nous, i.e. Mind), from which comes forth the Thought (Epinoia). As soon as thought is born out of the thinking silence, suddenly one has become two.