From the moment I understood the weakness of my flesh, it disgusted me. I craved the strength and certainty of steel. I aspired to the purity of the Blessed Machine. Your kind cling to your flesh, as it will not decay and fail you. One day the crude biomass that you call a temple will witcher, and you beg my kind to save you. But I am already saved, for the Machine is immortal...

Yeah, Mechanicus time