When Brothers Agree, No Fortress Is So

We Must Not Contradict, But Instruct Him That Contradicts Us; For A Madman Is Not Cured By Another Running Mad Also.

Observe Your Enemies, For They First Find Out Your Faults.

The Most Useful Piece Of Learning For The Uses Of Life Is To Unlearn What Is Untrue.

States Are Doomed When They Are Unable To Distinguish Good Men From Bad.

Not To Unlearn What You Have Learned Is The Most Necessary Kind Of Learning.