The most important figure in this second period of reception was Friedrich Adolf Trendelenburg (1802–1872). He had studied philology, history and philosophy at the universities of Kiel, Leipzig and Berlin (cf. Bratuschek 1872; Vilkko 2002, 56–81; Vilkko 2009, 211–217; Peckhaus 2007). Among his teachers were Karl Leonhard Reinhold and Johann Erich von Berger. He became professor in 1833; in 1837 he was promoted to full professor of practical philosophy and education at the Friedrich-Wilhelms-University Berlin where he grew into one of the main leaders of Prussian education and German philosophy. An ordinary member of the Royal Prussian Academy of Science at Berlin since 1846, he became the secretary of the Philosophical-Historical Section of this Academy in 1847. Trendelenburg was an anti-Hegelian who started from Hegelian philosophy. His fame as a neo-Aristotelian goes back to his Elementa logices Aristotelicae, first published in 1836 with five further editions (Trendelenburg 1836). In his systematic work on logic he pleaded for a unity of logic and metaphysics as found in the Aristotelian organon. This systematic attitude is developed in a comprehensive work containing heavy criticism of logical systems of his time, his Logische Untersuchungen, published in two volumes in 1840 (Trendelenburg 1840).