Auctoritas is a Latin word and is the origin of English "authority." While historically its use in English was restricted to discussions of the political history of Rome, the beginning of phenomenological philosophy in the twentieth century expanded the use of the word.

In ancient Rome, Auctoritas referred to the general level of prestige a person had in Roman society, and, as a consequence, his clout, influence, and ability to rally support around his will. Auctoritas was not merely political, however; it had a numinous content and symbolized the mysterious "power of command" of heroic Roman figures.

According to French linguist Emile Benveniste, auctor (which also gives us English "author") is derived from Latin augeō ("to augment"). The auctor is "is qui auget", the one who augments the act or the juridical situation of another.

Auctor in the sense of "author", comes from auctor as founder or, one might say, "planter-cultivator". Similarly, auctoritas refers to rightful ownership, based on one's having "produced" or homesteaded the article of property in question - more in the sense of "sponsored" or "acquired" than "manufactured". This auctoritas would, for example, persist through an usucapio of ill-gotten or abandoned property.

Massimo Cacciari (Italian pronunciation: [ˈmassimo katˈtʃari]; born June 5, 1944 in Venice) is an Italian philosopher and politician.

Born in Venice, Massimo Cacciari graduated in philosophy from the University of Padua (1967), where he also received his doctorate, writing a thesis on Immanuel Kant's "Critique of Judgment." In 1985, he became professor of Aesthetics at the Architecture Institute of Venice. In 2002, he founded the Department of Philosophy at the University of Vita-Salute San Raffaele in Milan, where he was appointed Dean of the Department in 2005. Massimo Cacciari has founded several philosophical reviews and published essays centered on the "negative thought" inspired by authors like Friedrich Nietzsche, Martin Heidegger and Ludwig Wittgenstein.

In the 1980s, Cacciari also worked with the renowned Italian composer of avant-garde contemporary/classical music Luigi Nono. Nono, a political activist whose music represented a revolt against bourgeois cultural constructs, collaborated with Cacciari, who arranged the philosophical lyrics on such works of Nono's as Das Atmende Klarsein, Io, and the opera Prometeo.

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".