An example of a maxim is to do unto others as you want others to do unto you.
Origin of maxim
- Middle English maxime from Old French from Medieval Latin maxima from maxima (prōpositiō) greatest (premise) feminine of Latin maximus greatest meg- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- After the inventor Sir Hiram Maxim (1840-1916).