Be Ready to Give Away Your Own Torah
A teaching ofRav Yoel Teitelbaumהרב יואל בן חנניה יום טוב טייטלבוים
Rav Yoel loved to write his Torah thoughts at two or three o'clock in the morning. He remarked that he could see himself doing so for the rest of his life, but that he had received a directive from his father that a person must be prepared to give away his own Torah, if necessary, to help a fellow Jew.
Source: Saying quoted in The Jewish Observer