This book is misnamed, I agree with a previous reviewer, but I believe it's totally unfair to downgrade so much wisdom because of one line, which actually reflects the main subject.
This book has deep and profound wisdom for life. I have read it 3 times perhaps now, and each time I read it, I find something new. This book is a miracle in itself and one of humanity's undervalued, best kept secrets. It is deeply spiritual, but practical and focused on the subject it offers, so this is a type of "What MBA never teachers" manuals. Some people walk through life never gaining, totally missing the treasures hidden in this little book. It does provide recepies if not for happiness, at least content and peace of mind.