OK, I'll explain, in the old days of the second temple, one of the most revered Jewish scholars of the time was Rabbi Akiva. A farmer approached him, and asked if he could teach him how to become a "good observant Jews", however, said the farmer, I really have to tend to my fields, my crops and my flocks, so I do not have much time, so please, could you teach me the "short version", one that can be listened to while standing one one foot. To which the Rabbi responded, "get on one foot and listen carefully", and as the farmer did his "stork stand", he recited: "thou shall love your neighbor as you love yourself". By the way, that short sentence, is indeed the concentrated version of Judaism, and that is why it is scribed within the tefilin (a small black box that religious Jews affix one to their forehead and one to their right arm, mostly when praying their morning prayer, the inscription is also affixed to the entry door of most religious Jews' abodes <within what is called a "Mezzuza").
I hope that will suffice as far as theology goes for the day (g).
Zeev
