Everybody knows it. Wizards are supposed to have beards. It's common knowledge.

The Second Rule is that the greatest harm can result from the best intentions. It sounds a paradox, but kindness and good intentions can be an insidious path to destruction. Sometimes doing what seems right is wrong, and can cause harm. The only counter to it is knowledge, wisdom, forethought, and understanding the First Rule. Even then, that is not always enough.

Books served to keep hard-won knowledge safe. They endured.

One of the things that defines our character is how we handle mistakes.

Wizard's Eleventh and Final Rule The "Rule Unspoken", the "Rule Unwritten", "The rule from the beginning of time.

People are stupid... They will believe a lie because they want to believe it's true, or because they're afraid it might be true.

If God is so powerful, can he create a rock which he cannot lift?