Not exactly a book but just read the "The Almanack Of Naval Ravikant: A Guide to Wealth and Happiness" and it's full of great quotes and entries by Naval who is

Not exactly a book but just read the "The Almanack Of Naval Ravikant: A Guide to Wealth and Happiness" and it's full of great quotes and entries by Naval who is an entrepreneur now turned philosopher. Gives sound logic on how to find wealth, contentment and purpose in todays busy world. It's also free in ebook form. https://www.navalmanack.com https://www.navalmanack.com