Austrian educator and philosophical writer; born at Prossnitz, Moravia, Jan. 20, 1823; died at Troppau, Silesia, Dec. 21, 1902. He studied philosophy and Oriental languages at the University of Prague, and in 1853 was appointed teacher of religion at the Piarist gymnasium, and director of the communal school in Nikolsburg.
In 1862 he organized a society for the care of invalid teachers and the widows and orphans of teachers, which gave rise to the Moravian-Silesian Hebrew Teachers' Association (Mährisch-Schlesisch—Israelitischer Lehrerverein), whose president Eisler was until 1898, when it was transformed into the Kaiser Franz Joseph I. Jubiläumsstiftung zur Unterstützung von Lehrerwittwen und-Waisen.
Besides essays in various literary reviews, Eisler has published "Vorlesungen über die Jüdischen Philosophen des Mittelalters," 3 vols., Vienna, 1870-1883.
In June, 1893, after forty years of active service, Eisler withdrew from public life and retired to Troppau.
- Mähren's Männer der Gegenwart, Brünn, 1889;
- De Gubernatis, Ecrivains du Jour;
- Hinrichsen, Das Literarische, Deutschland, Berlin, 1887;
- Joseph Wytzlik, Deutsche Dichter und Schriftsteller-Charaktere, Vienna, 1902.