Terrific book! Indeed your brain is the most powerful asset! So why not use it effectively? Leading life through intentionality can/and will produce positive thinking/or attitude. By examining bad habits that do not add value to your life can transform your life. Does the T.V you watch give you a negative perception about society? How about the people you surround yourself around, are they problem seekers or problem solvers? These concepts all impact your subconscious thought and gain access into your gateway of thinking. I highly recommend this book!