From faithful German brothers and sisters ​ — too numerous to mention by name — ​ the four learned much, but they also learned from one another.
या चौघांनी जर्मनीतल्या असंख्य विश्‍वासू बंधुभगिनींकडून बऱ्‍याच गोष्टी शिकल्या, शिवाय ते एकमेकांकडूनही शिकले.