“The term ignorant is indeed perhaps an overstatement, implying as it does that something is known somewhere, whereas in reality we are not even sure of this: we in fact cannot aver with any degree of certainty that we are ignorant. Yet this is not so bad; we have at any rate kept our open-mindedness -- that, at least, we may be sure that we have -- and are not in any danger, or so it seems, of freezing into the pious attitudes of those true spiritual bigots whose faces are turned toward eternity and who therefore can see nothing.”