蔡曙山长期从事语言逻辑和语言哲学研究,著有《言语行为和逻辑》(1998),此书历10年而成,世界著名心智与语言哲学家塞尔(John R.Searle)倍加赞赏。著名书评家简方在《光明日报》发表书评《在语用逻辑里收获思想》,盛赞此书:“语言是我们最亲近的东西……但我们对语言本身的了解 CAI Shu-shan has long been engaged in linguistic logic and linguistic philosophy. He is the author of “Speech Act and Logic” (1998), which was written in 10 years and praised by world-renowned intellectual and linguistic philosopher John R. Searle. The famous book reviewer Jane Fang published a book review entitled “Gaining Thought in Pragmatic Logic” in the Guangming Daily, praising this book: "Language is what we are closest to ... but our understanding of the language itself