"(http://www.bejewish.org) A Jew who really appreciates what it means to be a Jew and understands the full value of Torah will WANT to offer it to others.
Why am I in favor of offering Judaism to the world? Because I'm convinced that, as King David wrote: ""the Torah is whole, and that it restores the soul."" King David wasn't referring to the Laws of Noah. And the Laws of Noah are certainly not perfect or whole. Otherwise there would never have been a need to give Torah.
Acting lofty and closeded towards non-Jews only comes across as indifferent and stuck up.
We're teaching that God loves all mankind and gives all people the opportunity to be Jewish.
(Orthodoxy And The Conversion Crisis)