What is important is not the quantity of your knowledge but its quality. You can know many things without knowing the most important.
One can no more approach people without love than one can approach bees without care. Such is the quality of bees.
Nowadays, as before, the public declaration and confession of Orthodoxy is usually encountered among dull-witted, cruel and immoral people who tend to consider themselves very important. Whereas intelligence, honesty, straightforwardness, good-naturedness and morality are qualities usually found among people who claim to be non-believers.