Dietrich Fischer-Dieskau & Christoph Eschenbach, Schumann: The Masterworks, Sechs Gesänge, Op. 89: II. "Heimliches Verschwinden"

Dietrich Fischer-Dieskau quotes

Particularly at around the age of 70 you reach a stage where you have to be very careful. If, at that point, you abandon the work you have been doing, there is a good chance that you will just collapse and drift.