"Music is above words; it begins where words no longer suffice, therefore it would be futile to attempt to bring music closer to listeners by means of explanation"
- Rheinberger, 1890

"[Rheinberger is an] ideal teacher of composition, one whose equal is not to be found inside or outside of Germany."
- Hans von Bulow

"His guiding precept was always naturalness in music, reflected in his voice leadings, his feeling for form and his means of expression."
- Wilhelm Furtwängler, 1940