GEN1409 When you visit a place, contribute to its welfare.   The Talmud Shabbat 33b states that when Yaakov encamped by Shechem, he instituted something for the welfare of the city.   Rav said that he minted coins.   Shmuel said that he established markets, and Rabbi Yochanan said that he set up bathhouses for the residents of the area.   The Midrash Genesis Rabbah 79:6 adds that whenever we benefit from a place, we must show our gratitude by doing something for its welfare.   Rabbi Chayim Shmuelevitz commented that this principled also applies to someone who comes to a yeshiva.   Although a student might not be able to assist in the physical betterment of the yeshiva, he is able to assist in the spiritual betterment.  How? By serving as a good example of others.   He should come to davening and seder (study sessions) on time so that others will do likewise.  PLYN 108