The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
我认为对古代好的东西要阐述奖惩,对现在好的东西要创造,不过是希望好的东西越来越多罢了。 
信任是通过提供持续的价值而建立的,而不仅仅是空洞的承诺。
The act of writing is an act of optimism.