没仔细看过他们说的，咱原则是能省就省，物质匮乏一点，精神自由一点。转一段话：
“当你乱花钱的时候，你不是在用钱宠爱自己，而是在用钱供养那些比你聪明的人。
When you spend money like they mean nothing to you, you're not actually paying for a better life for yourself. You are just feeding your money to someone smarter than you.”