  Hegel's followers split into what are sometimes called ‘Right Hegelians’ and ‘Left Hegelians’ (or ‘Young Hegelians’). Right Hegelians promoted the generally positive view of the Prussian state that Hegel expressed in the Philosophy of Right. Left Hegelians rejected it, and with it the Protestant Christianity which they saw as its vehicle. In this way Hegel's peculiar way of promoting Christianity ended up causing its vehement rejection by thinkers who shared many of his social ideals. David Friedrich Strauss (1808–74) wrote The Life of Jesus Critically Examined, launching the historical-critical method of Biblical scholarship with the suggestion that much of the Biblical account is myth or ‘unconscious invention’ that needs to be separated out from the historical account. Ludwig Andreas Feuerbach (1804–72) wrote The Essence of Christianity in which he pictured all religion as the means by which ‘man projects his being into objectivity, and then again makes himself an object to this projected image of himself’ (The Essence of Christianity, 30). Feuerbach thought religion resulted from humanity's alienation from itself, and philosophy needed to destroy the religious illusion so that we could learn to love humankind and not divert this love onto an imaginary object. Karl Marx (1818–83) followed Feuerbach in this diagnosis of religion, but he was interested primarily in social and political relations rather than psychology. He became suspicious of theory (for example Hegel's), on the grounds that theory is itself a symptom of the power structures in the societies that produce it. “Theory,” Marx writes, “is realized in a people only in so far as it is a realization of the people's needs” (“Critique of Hegel's Philosophy of Right,” Early Writings, 252). And ‘ideologies’ and ‘religion,’ he believes, arise from “conditions that require [these] illusions” (Ibid., 244). Marx returned to Hegel's thoughts about work revealing to the worker his value through what the worker produces, but Marx argues that under capitalism the worker was alienated from this product because other people owned both the product and the means of producing it. Marx urged that the only way to prevent this was to destroy the institution of private property (“Economic and Philosophic Manuscripts,” Early Writings, 348). Thus he believed, like Hegel, in progress through history towards freedom, but he thought it would take Communist revolution to bring this about.