He is the author and editor of over 30 books including one seminal book, well, many seminal books, but one in particular that I'll mention, Animal Liberation.

他曾撰写编辑书籍30余本,其中一本影响深远，当然，其中的很多都很有影响力,但是我要特别提到这一本，《动物解放》

普林斯顿公开课 - 人性课程节选