Mattishayu--read Franz Rosenweig's The Star of Redemption. More pillars and triads of pillars than you want to count, all intermeshing--on which Judaism stands.

Or if you can't find that, then Reb Zalman and Daniel Siegal's Credo of a Modern Kabbalist--they took Star of Redemption as a starting point--even if you're not a kabbalist, it's a great book.