Psychological understanding comes from seeing mind in action.
你必須寫那本想要被寫出來的書。如果這本書對成年人來說太難，那么你就為孩子們寫。
Old soldiers never die. They just fade away.
Don't be afraid of failure when facing challenges. Every failure is a step towards success.
互聯(lián)網的未來是人工智能和大數據的結合。
Doubt is not a pleasant condition， but certainty is an absurd one.