In the course of explaining Christian doctrine, Mainländer introduces a very modern and redolent theme: the death of God. He popularized the theme before Nietzsche, though he gives it a much more metaphysical meaning.
On the night of 1 April 1876, the young Philipp Batz, only 34 years old, standing on stacked copies of his just published philosophical work, hanged himself. Some thought Batz was insane; others said he had been depressed. But his suicide, which had been long planned, was also an act of conviction; it was indeed the final will and testament of his philosophy. In a pessimistic age, Batz was perhaps the most radical pessimist of them all. Like all pessimists, he taught that life is suffering, and that it is not worth living. Unlike the others, however, Batz not only taught pessimism; he lived it and breathed it, making its ascetic principles the basis of his conduct. He alone was willing to take pessimism to its ultimate conclusion: suicide.
Because many Nietzsche scholars are ignorant of his context, they tend to ascribe an exaggerated originality to him. The ideas of nihilism, the death of God, ressentiment, for example, were not coined by Nietzsche.