… is from part III of Percy Bysshe Shelley’s 1813 poem “Queen Mab “:
Of virtuous soul commands not, nor obeys.
Power, like a desolating pestilence,
Pollutes whate’er it touches; and obedience,
Bane of all genius, virtue, freedom, truth,
Makes slaves of men, and of the human frame
A mechanized automaton.