Three Conditions for which a Druid can be unseated:

For performing warfare or muder

For telling a falsehood

For divulging a secret which he holds

 

Three things a Bard ought not reveal:

Injurious truth

The disgrace of a friend

The secrets of the Druids

 

Three Keys of Druidic Mastery:

To know

To dare

To keep silent

 

Three Virtues of Wisdom:

To be aware of all things

To endure all things

To be removed from all things

 

Three Spiritual Instructors of Mankind:

Mastery of self

Mastery of world

Mastery of unknown

 

Three Rights of a British Druid:

Keep wherever he goes

That no naked weapon be born in his presence

That his counsel be preferred to all others

 

Three Laws Incumbent Upon Teaching a Bard:

That he take only one student of each degree at once

That men of vocal song associate not with men of instrumental

That he suffer his disciples not to take disciples

 

Three Places Upon a Bard Where Blood May Be Drawn:

From his forehead

From his breast

From his groin

 

Three Things a Man is:

What he thinks he is

What others think he is

What he really is

 

Three things That Make Re-birth Necessary For Man:

His failure to obtain wisdom

His failure to attain independence

His clinging to his lower self

 

Three Things to Be Controlled Above All:

The hand

The tongue

Desire

 

Three Signs of Cruelty:

To needlessly frighten an animal

To needlessly tear plants and trees

To needlessly ask favours

 

Three People Deserving Admiration:

Those who look with love on the beauty of the Earth

On little children

On a great work of art

 

Three Signs of Compassion:

To understand a child's complaint

To not disturb an animal that is lying down

To be cordial to strangers

 

Three Things Avoided by the Wise:

Expecting the impossible

Grieving over the irretrievable

Fearing the inevitable

 

These were taken from the book " The 21 Lessons of Merlyn - A Study in Druid Magic & Lore" by Douglas Monroe, a terrific teacher and writer.  This is a great book and I highly recommend it's reading.  The knowledge and wisdom given by this man is truly amazing.