Brit Milah: It's OK for Gentiles Not to Understand
...The Jew has always been something of a mystery to the non-Jews; they have never really understood us or what majkes us tick. This is especially true regarding the mitzvah of circumcision (brit milah) - and this does not bother us. The non-Jew is not bound by this mitzvah, and he has no need, or ability, to comprehend it...
"What is the source of Jewish strength? Let us be clear that we're not talking about military prowess, strong abilities in various fields, charisma, or even the strength to endure difficulties. Jewish power is of a totally different nature. It has a bit of all the above, but it also has an extra element, something wondrous and different – even bordering on a craziness..."