Age isn't how old you are but how old you feel.
释义：跟交情浅的朋友说过深的话题，是愚蠢的；生活贫困的人总是希望得到富贵者的施舍，是糊涂的；没有取得他人的信任就进献忠言，会被误解为批评。
The richness I achieve comes from Nature, the source of my inspiration.
The only way to do great work is to love what you do.
降低成本的最好方法是一开始就没有成本。