在上海法租界莫利爱路二十九号住宅与李宗黄谈话，1918年7月

Fearless is not the absence of fear. It’s not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

创新不仅仅是技术的问题；它关乎改变思维方式并拥抱新的思考方式。

【释义】：和品德好的人相处，就像进入放满香草的屋子，久了也会染上香气；与恶人交往，如同走进卖臭鱼的店铺，久了也会变臭。  

I don't care what people say about me as long as it isn't true.

我不会继续敲那扇不为我打开的老门。我要创造自己的门，然后走进去。