Jewish history is rich in the stories of righteous gentiles who converted to Judaism and made tremendous contributions to Jewish life, culture and scholarship. Unfortunately, there have also been many instances when the convert was insincere in the conversion process to Judaism and great problems, both personal and national, resulted. Judaism views insincere conversions as personally damaging to the prospective convert. Judaism is not an exclusivist religion. One need not be Jewish to achieve immortal life after death. Thus, becoming Jewish places greater obligations on the person than before conversion. Jews are held liable for the non-observance of Shabbat, kashrut...