I'd forget the piece just before I went out to do the concerto, the panic was too great. This was not anything that gave me pleasure. This was fulfilling somebody else's dream.
If you want to keep something concealed from your enemy, don't disclose it to your friend.
One of the saddest realities is that we never know when our lives are at their peak. Only after it is over and we have some kind of perspective do we realize how good we had it a day, a month, five years ago.