怎样的人，他才敢如此指责自己的错误呢？

I don't focus on what I'm up against. I focus on my goals and I try to ignore the rest.

The only constant in agriculture is change—embrace it.

The man in the planning room, whose specialty under scientific management is planning ahead, invariably finds that the work can be done better and more economically by a subdivision of the labor.

每一本书都是一段旅程，而每一段旅程都会改变读者。