Ágnes Heller was a Hungarian philosopher and lecturer. She was a core member of the Budapest School philosophical forum in the 1960s and later taught political theory for 25 years at the New School for Social Research in New York City. She lived, wrote and lectured in Budapest.
This may be the best introduction to what I guess one could call the attitude of the renaissance. Heller's method was an eye-opener for me in that she managed to work out a way of looking at thinkers and doers who were not contemporaries as if they were. She made Shakespeare come alive for me in a new way too, and given that I am a Shakespeare fan, this was an achievement in its own right. A truly searching, courageous and intelligent book, it outstrips any general account of the renaissance I have read by a large margin.