Racism

From the standpoint of the Torah there can be no distinction between one human being and another on the basis of race or color. Any discrimination shown to another human being on account of the color of his or her skin constitutes loathsome barbarity. It must be conceded that the Torah recognizes a distinction between Jew and a non-Jew. This distinction, however, is not based upon race, origin, or color, but rather upon k'dushah, the holiness endowed by having been given and having accepted the Torah. Furthermore, the distinction between Jew and non-Jew does not involve any concept of inferiority but is based primarily upon the unique and special burdens that are incumbent upon the Jews.

(Rabbi Ahron Soloveitchik)