Adagio in B minor (Mozart) Flute Quartet No. 1 in D major, K. 285. The Austrian composer and academic Gerhard Präsent has made an arrangement for string quartet in four movements "Fantasy Quartet in D" in which this piece acts as the third one. The autograph is at the Library, Stockholm. Adagio in B minor (Mozart) The Adagio in B minor for piano, K. 540, by Wolfgang Amadeus Mozart is a standalone composition for solo piano, and was entered into his "Verzeichnis aller meiner Werke" ("Catalogue of all my Works") on March 19, 1788. At 57 measures, the length of the piece is largely based
19th-century philosophy Stuart Mill promoted the idea that actions are right as they maximize happiness, and happiness alone. Developed by Karl Marx and Friedrich Engels in the mid-to-late-19th Century, Marxism is a sociopolitical and economic view based on the philosophy of dialectical materialism, which opposes idealism in favour of the materialist viewpoint. Marx analysed history itself as the progression of dialectics in the form of class struggle. From this it is argued that "the history of all hitherto existing society is the history of class struggles." According to Marx, this began with the phase of primitive communism (hunter-gatherer society), after which the