2.
When you can hear a violinist, that is better than you, then you learn from him, because if you play with somebody who is worse than you, then you go down.
Ruggiero Ricci
3.
Years ago, I heard an interview with violinist Yehudi Menuhin. The interviewer said, "Do you still practice?" And he said, "I practice every day." He said, "If I skip a day, I can hear it. If I skip two days, the conductor can hear it. And if I skip three days, the audience can hear it." Oh, yes, you have to keep that muscle firm.
Donald E. Westlake