The Most Necessary Learning Is That Which

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

The Most Necessary Learning Is That Which Unlearns Evil.

As Iron Is Eaten Away By Rust, So The Envious Are Consumed By Their Own Passion.

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

It Is A Royal Privilege To Do Good And Be Ill Spoken Of.