1945-51 Farnsworth House
1949 Glass House
1949- Philip Johnson's career as reenactionary architecturism
Tiring architects VS Real Architects
The late period of artists is often under-rated. Picasso's Late Period was mostly disliked while he was alive--seen as repetitious and unimportant. Yet with Picasso dead, the late works were not so unimportant anymore, in fact they manifest one of Picasso's most creative periods.
Frank Gehry may be in a wonderful position if he continues to do architecture for another decade or so, because, when he isn't around anymore, his late works might just manifest his most creative period.
I like to look at and study the late periods of artists because of all the facile-ness and confidence and even (if you're lucky) the "I don't give a fuck" found there.
Philip Johnson produced an interesting late period, and he did change 'styles' with every new project, yet his overall style has always been reenactionary architecturism.