He was of the class of public figures for whom newpapers prepare obituaries in advance - the New York Times one is unusually long and detailed, to fit his unusually long and creative life.
He wrote shelves of books. I've read only one of them, some years back, but it remains in my mind as an unusually important book - and also, a bit startling for an author who was in his 90s at the time - an innovative book: From Dawn to Decadence: 500 Years of Western Cultural Life 1500 to the Present, published in 2000. Here's how it begins:
It takes only a look at the numbers to see that the 20th century is coming to an end. A wider and deeper scrutiny is needed to see that in the West the culture of the last 500 years is ending at the same time. Beliving this to be true, I have thought it the right moment to review in sequence the great achievements and the sorry failures of our half millenium.A few pages later he present the outlines of the half millenium:
[I]t could be said that the first period - 1500-1660 - was dominated by the issue of what to believe in religion; the second - 1661-1798 - by what to do about the status of the individual and the model of government; the third - 1790-1920 - by what means to achieve social and econmic equality. The rest is the mixed consequence of all these efforts.Read it. It's a very fine book, and it tells important things about our world.