Dietrich Fischer-Dieskau

When you go out onto the stage, all the preparation has to be forced into your subconscious. For the moment of the performance, we all have to return to a new level of unconsciousness. All the reflection and all the doubts have to be laid aside before you start.

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.