 He held also that the words of the ancient rabbis should not be interpreted according to modern conception, such interpretation being liable to result in error.Isaac Hirsch died at Vienna on June 1, 1905.Weiss's most important production, through which he acquired great renown, is his "Dor Dor we-Dorshaw," (דור דור ודורשיו; "Each generation and its Scholars") a work in five volumes.