“Of course she was restless and drove herself too hard. Although she seemed so astonishingly resilient, she often suffered ill health and fits of great depression, but she made light of the fact and rarely admitted to it or talked about it to other people. Her courage in the face of her personal unhappiness was touching and remarkable. She always spoke affectionately of those who had first recognized her talents and helped her to develop her natural gifts. She studied and experimented continually and always brought to rehearsal a willingness and technical flexibility which was the result of unceasing self-criticism and devotion to her work.”