Robert rauschenberg's creation of combine paintings challenged the influential ideas of

Clement Greenberg

Clement Greenberg is one of the most influential American art critic of the latter half of the 20th century. his ideas and notions, were however subjected to the literal test of time, and while some failed,due to painters such as Robert Schoenberg doing the exactly opposite of what he advocated, he undoubtedly is  still an influential figure.

Sir thomas more, venerated in the catholic church as saint thomas more, was an english lawyer, social philosopher, author, statesman, and noted renaissance humanist. he was also a councillor to henry viii, and lord high chancellor of england from october 1529 to 16 may 1532. i found this information on wikipedia