He played the violin from a very early age until he was 30, when he switched to the piano... He liked history, and there are a number of volumes on this subject in his library, including the history of mathematics.
Siya ang nilalaro violin mula sa isang maagang edad hanggang siya ay 30 na, kapag siya lumipat sa piano... He liked history, at mayroong isang bilang ng mga volume na sa paksa na ito sa kanyang aklatan, kabilang ang kasaysayan ng matematika.