The Roman philosopher and statesman, Cicero, said this some 2,000 years ago, and it is still true.
The six mistakes of man:
- The delusion that personal gain is made by crushing others.
- The tendency to worry about things that cannot be changed or corrected.
- Insisting that a thing is impossible because we cannot accomplish it.
- Refusing to set aside trivial preferences.
- Neglecting development and refinement of the mind, and not acquiring the habit of reading and study.
- Attempting to compel others to believe and live as we do.