I am not my own subject. But now I am not so sure

I began a cursory study of memoirs and was irritated to find that Gore Vidal had already bagged Palimpsest, a title I had been toying with. But as I grumpily leafed through the book I discovered that Vidal had had his own qualms about the genre. In fact he claims in the introduction that he had never previously entertained the idea of writing a memoir because he did not consider himself his own subject, but now he was not so sure.

From Brought to Book, Me Neither