你越是积极且实际地投入，就越会感到成功。
The more you're actively and practically engaged, the more successful you will feel.
To be a writer is to be a spy on life.
一个好的经济学家必须既是科学家，又是人文主义者。
最好的技术是无形的，它只是默默地发挥作用。
I went to the woods because I wanted to live deliberately,I wanted to live deep and suck out all the marrow of life, To put to rout all that was not life, and not when I had come to die, Discover that I had not lived.