Interesting people say interesting things. Four of the most interesting people are inextricably linked in ways too numerous to count and essentially bridge the gaps between philosophy, politics, Jedi guruism and music: existential philosopher Friedrich Nietzsche, uber-politician Bill Clinton, Jedi master Yoda and Radiohead frontman/lyricist Thom Yorke. Take our quiz and find out how much you can recognize, or have retained, from the universal truisms uttered by each over the years.