1. Ramban makes a comment in last week's parashah which is of incredible importance. On the passuk of "Ve'asisa hayashar vehatov," he points out that the Torah cannot discuss every case that arises (this is interesting in light of Ramban's mystical view that "everything is in the Torah"), and therefore we must extrapolate moral values from the mitzvos to apply to other cases. I think that this has ramifications for everything from software piracy to pyramid schemes to organ donation.