The Snow Leopard by Peter Matthiessen (as did pdevr) - http://en.wikipedia.org/wiki/The_Snow_Leopard
A Guide to the Good Life: the ancient art of Stoic joy by William Irvine - https://www.goodreads.com/book/show/5617966-a-guide-to-the-g...
Now Reading:
Seneca's Dialogues & Essays - https://www.goodreads.com/book/show/1933080.Dialogues_and_Es...