The Teacher Who Was Not To Be (Norwegian: Læreren som ikke ble) is an opera monologue by Marcus Paus and with a libretto by Olav Anton Thommessen from 2013.
The monologue is based on a letter written by professor of composition Olav Anton Thommessen to his erstwhile student Marcus Paus in 2006, shortly after Paus had presented some of his own works to the Norwegian Society of Composers where he had recently been admitted as a member.
Thommessen, born in 1946, has been one of Norway's foremost modernist composers since the 1970s and is a proponent of atonal music.
A long monologue on why Paus has misunderstood everything about music ends with the words "I do not want any more verbal contact with you.
I write to you based on your presentation in the Norwegian Composers' Association, where you tried to act as a "breath of fresh air" in an environment that you believe has been led astray.