Name the German philosopher, poet, and philologist whose novel inspired an oil painting cycle 'Also sprach Zarathustra' which was exhibited several times including Moscow in 2005?
Also Sprach Zarathustra (painting):  The oil painting "Also Sprach Zarathustra" series was exhibited several times — including the exhibition at the Institute of Philosophy of the Russian Academy of Sciences in 1997 and at the First Moscow Biennale of contemporary art in 2005.
i don't know