Latin texts where a piece of work required it. He was "making waves" even with his habilitation dissertation on Boethius in which he highlighted numerous problems with the then widely respected opening thesis of Hermann Usener that the Boethius work was in large part derivative from the Protreptikos of Aristotle. Klingner separated out and spelled out the distinctive influences of cynic, stoic, neoplatonic and christian views of the world. Of particular importance were Klingner's researches on the Roman historians, epic poets and lyric poets. He demonstrated that Sallust had his own historical perspective and was not simply some latter-day version of Posidonius. Along with Hans Drexler (though the two were working independently of one another) he refuted the thesis that the historical writings of Sallust were simply partisan presentations on behalf of one particular political party. In 1930 he turned his focus to the life-time output of Virgil, identifying a structural unity in a body of work that was many decades in the making. Klingner published works by the lyric poet Horace after painstaking analysis of the manuscripts, contributing insights and clarifications in a new critical edition which, half a century after his death, continues to command wide respect. He also contributed important work on Greek literature. In respect of the Iliad and the Odyssey he determined through stylistic analyses that only the "Dolonie" and "Telemachy" could be seen as later insertions. Output (selection) References German classical philologists Writers from Dresden Academic staff of the Humboldt University of Berlin Academic staff of Leipzig University Academic staff of the Ludwig Maximilian University of Munich Members of the German Academy of Sciences at Berlin Members of the Bavarian Academy of Sciences Members of the Austrian Academy of Sciences Heads of universities in Germany 1894 births 1968 deaths Academic staff of the University of Hamburg