The Spirit of the Laws
Dehkhoda translated Montesquieu's "De l'esprit des lois" ("The Spirit of the Laws") into Persian. He has also written "Amsal o Hekam" ("Proverbs and Mottos") in four volumes, a French-Persian Dictionary, and other books, but his lexicographic masterpiece is "Loghat-nameh-ye Dehkhoda" ("Dehkhoda Dictionary"), the largest Persian dictionary ever published, in 15 volumes. Dr. Mohammad Moin accomplished Dehkhoda's unfinished volumes according to Dehkhoda's request after him. Finally the book was published after forty five years of efforts of Dehkhoda.