Here are the most significant ethical writings of the 12th-century philosopher, physician, and master of rabbinical literature-newly translated from the original sources by noted Maimonides scholars Raymond L. Weiss and Charles E. Butterworth. Among these are the first English versions of Eight Chapters and the Letter to Joseph. Other selections include Laws Concerning Character Traits, Treatise on the Art of Logic, and gleanings from Maimonides' medical writings. Introduction. Notes.