Indeed , he states that : In this book , Lorenz proposes that the best hope for mankind lies in our looking for mates based on the kindness of their hearts rather than good looks or wealth .
However , the principle of competition , typical of Western societies , destroys any chance of this : In this book , Lorenz proposes that the best hope for mankind lies in our looking for mates based on the kindness of their hearts rather than good looks or wealth .