Some Jews say:

Why do I need to worry about all these commandments?  I’ll just be a good person and not bother others.  I don’t steal, kill, or commit adultery.  Really, that’s what matters in the grand scheme of things. 

Other Jews say:

The important thing, what makes us Jewish, is our relationship with God.  Prayer, kosher, Shabbat – these are the central Jewish tenets and hallmarks of religiosity.

I say:

You’re both half-right, and you’re both wrong.  You’re both incomplete.  And you’re each only tapping into half-Judaism.