I have always found that autobiographies, or descriptive books aimed at making clear an authors point of view, make for quite awesome "philosophy" books. Einstein's The World as I see It, Wittgenstein's Culture and Value, etc. are truly fascinating because they do not go on to say anything metaphysical, but show how these men treated day to day life.
The World as I see It is wonderful, and so too is the hard to find autobiography of Einstein. "In the beginning, God created Newton's Laws"... oh, Einstein!