Also Sprach Zarathustra: "Better know nothing than half-know many things! Better be a fool on one's own account, than a sage on other people's approbation!

My spiritual conscience requireth from me that it should be so - that I should know one thing, and not know all else: they are a loathing unto me, all the semi-spiritual, all the hazy, hovering, and visionary. Where mine honesty ceaseth, there am I blind, and want also to be blind. Where I want to know, however, there want I also to be honest - namely, severe, rigorous, restricted, cruel and inexorable."