20% 54/310頁 1143/5796
全体の5分の1くらいまできました。ゲーム理論の囚人のジレンマとかがでてきます。
 
前回までの身も蓋もない内容とうってかわって、そうでなくちゃと思うようなところもでてきました。
以下は共感した部分です。
 
Studies show spending money on others makes us happier than spending it on ourselves. Volunteering even just two hours a week predicts increases in life satisfaction. Even more surprising, those who donate their time to help others feel less busy and like they have more free time.
 
Barker, Eric. Barking Up the Wrong Tree: The Surprising Science Behind Why Everything You Know About Success Is (Mostly) Wrong (p.46). HarperOne. Kindle 版.