It's not often that I can claim to have read any book that significantly altered my outlook on life. I managed to read two in a row!
Book 1: Zorba the Greek by Nikos Kazantzakis
A couple of quotes from the book.
"You, too, have turned into a typical lousy Greek, a tavern-loafer, a wallower in café-life, because you need not think only cafés are cafés; books are, too, and habits, and your precious ideologies. They are all cafés"
"the highest point a man can attain is not Knowledge, or Virtue, or Goodness, or Victory, but something even greater, more heroic and more despairing: Sacred Awe!"
Book 2: Collapse by Jared Diamond.
I loved the "cautious optimism" that Diamond advocates. I've almost stopped being a doomsday prophet.
Here's a blog recommendation. I'll be watching (and working on) this VERY closely.