“We can ignore reality, but we cannot ignore the consequences of ignoring reality.”

“Reality is what we are ignorant of. ”

“Reality is one of the possibilities I cannot afford to ignore”

“We can evade reality, but we cannot evade the consequences of evading reality”

“We can deny reality, but we can't deny the consequences of denying reality.”

“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.”