有时候最难的事情和最正确的事情是同一件事。
译文：年纪大了经不起生死离别，在异乡的日子里眼泪总打湿衣裳。
真正的勇气不是没有恐惧，而是在恐惧中前行。
The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines of the establishment.
The world is full of magic things, patiently waiting for our senses to grow sharper.
The best performance improvement is the transition from the non-working state to the working state.
不确定性不能成为不作为的借口。
I cannot teach anybody anything。I can only make them think.