Sentence:  Look at the affairs of nations on the widest scale—look at their intercourse with each other—look at the manifestoes, by which war is declared—look at the treaties, by which peace is restored—look at the professions of kings, or popes, or generals, or ministers. Is not cant, <WSD>humbug</WSD>, hypocrisy, the staple of them all? What is modern diplomacy, but a system of duplicity and deceit? 
Meaning of the word marked with <WSD> tags:  A fraud or sham (countable); hypocrisy (uncountable).