A person should always engage in them [Torah and mitzvot] even not for their own sake, for from doing them not for their own sake, one comes to do them for their own sake.

9342. On Visiting Eretz Yisrael, Parental Duty to Marry Off a Son, and Yud-Beis–Yud-Gimmel Tammuz על ביקור בארץ ישראל, חובת האב להשיא את בנו, וי"ב-י"ג תמוז