The Gay Science
The Gay Science (German: Die fröhliche Wissenschaft; sometimes translated as The Joyful Wisdom or The Joyous Science) is a book by Friedrich Nietzsche published in 1882, and was followed by a second edition in 1887, after the completion of Thus Spoke Zarathustra and Beyond Good and Evil. This substantial expansion includes the addition of a fifth book to the existing four books of The Gay Science, as well as an appendix of songs.