费恩曼惯用独特的方法研究当时的主流问题，虽然仅发表48 篇学术论文，但是他的巧妙思维值得后人学习.费恩曼 为了验证热力学第二定律，设计了一个著名的棘轮与爪思想实验，其诱发了近30 年来的分子马达工作机制的研究.

Feynman used often the unique approach to study the main current problems，although he published only 48 papers，one needs to learn his artifice idea.In order to prove the second thermodynamics law，he designed a well-known ideal experiment for the ratchet and paw，which induced the studies of molecular motors hereafter.