Rabbi Moshe Bryski, executive director and spiritual leader of Chabad of the Conejo in Agoura Hills, Calif., is the guest speaker at a shabbaton at Lubavitch on the Palisades. At 6:30 p.m., he will discuss “The Courage to Change.” On Shabbat morning at 11, his sermon will be “The Legacy of the Lubavitcher Rebbe — The Infinite Value of the Individual Jew.” At  8 p.m., during seudah sh’lishit, he will talk about “The Passion of Judaism — Does Passion Lead to Practice or Vice Versa?” 11 Harold St. Dinner reservations, (201) 871-1152.