- Feed http://quotationsbook.com/ Quotations Book Search <![CDATA[There is nothing more dreadful than the habit of doubt. Doubt separates people. It is a poison that disintegrates friendships and breaks up pleasant relations. It is a thorn that irritates and hurts; it is a sword that kills.]]> http://quotationsbook.com/quote/11338/ http://quotationsbook.com/quote/11338/