Who noted for his contributions to the philosophy of language, philosophy of mind, and social philosophy, he began teaching at UC Berkeley in 1959, worked with the man who was  awarded a Fulbright Visiting Scholarship to visit the University of California at Berkeley?
John Searle John Rogers Searle ( ; born 31 July 1932) is an American philosopher. He is currently Willis S. and Marion Slusser Professor Emeritus of the Philosophy of Mind and Language and Professor of the Graduate School at the University of California, Berkeley. Widely noted for his contributions to the philosophy of language, philosophy of mind, and social philosophy, he began teaching at UC Berkeley in 1959.
William Labov William "Bill" Labov ( ; born December 4, 1927) is an American linguist, widely regarded as the founder of the discipline of variationist sociolinguistics. He has been described as "an enormously original and influential figure who has created much of the methodology" of sociolinguistics. He is employed as a professor in the linguistics department of the University of Pennsylvania, and pursues research in sociolinguistics, language change, and dialectology. He semi-retired at the end of spring 2014.