转一下amazon上的评论：
http://www.amazon.com/Principles-Political-Economy-Taxation-Great/dp/1573921092
"... the Principles is his major opus, one he was very much reluctant to write, but only did so at the urgings of James Mill and his son John"
"...The concepts adapted and created by David Ricardo is transported to the text in a dry and concise style, not too much worried in polemics, but only interested in address the topics he raises in a very precise way."