In all of history there have been very very few people who could give advice – you see, to give advice you must not know one thing – in fact, that is the problem with all secular wisdom, for as the Previous Rebbe says about secularists -they take a single truth and make that into their “God” – life obviously has many many many components – to name a few – eating, exercising, sleeping, relationships, money etc. etc. – to understand truth, one must not only be able to understand, as Kabbalah says about G-d “He is the best of everything,” but furthermore, understand how all things compliment, creating a single whole