Avodah Zarah 19: Learn the Torah That Delights You

Avoiding wickedness and wrong-doing: Interpreting the first psalm in the Book of Psalms (Tehilim) - happy is one who does not walk in the counsel of the wicked - as in the generation of the Tower of Babel, or the people of Sodom. Plus, one should learn Torah according to what is a delight -- only that which one's heart desires. Also, if one builds beyond the part that a Jew should build (unto a host section for idolatry), the Jew should still receive his wages -- it's only an accessory to idolatry, not straight up benefit from idol worship. Indeed, under the right terms, the Jew could make the idol itself!