The six mistakes of man by Marcus Tullius Cicero (106 BC to 43BC):
1, The illusion that personal gain is made up of crushing others.
2, The tendency to worry about things that cannot be changed or corrected.
3, Insisting that a thing is impossible because we cannot accomplish it.
4, Refusing to set aside trivial preferences.
5, Neglecting development and refinements of the mind, and not acquiring the habit of reading and study.
6, Attempting to compel others to believe and live as we do.
(Numbers 1, 3, 4 and 6 suggest he may have practised the martial arts! :-)