The mark of the immature man is that he wants to die nobly for a cause, while the mark of the mature man is that he wants to live humbly for one.
– J. D. Salinger
The Catcher in the Rye. Chapter 24. The words of poet and psychoanalyst Wilhelm Steckel, passed on to Holden by his former teacher Mr. Antolini. It sounds like his teacher fears Holden may commit suicide.