The Enneagram virtues stand in contrast to the Enneagram passions and were originally a part of Oscar Ichazo's ego-types. The passion is the emotional energy supporting our ego fixation. Developing the corresponding virtue helps us find freedom from the passion and thus ego fixation.
A similar concept can be found in Christianity with the vices and virtues (seven deadly or capital sins) where vice or sin is corrected by the virtue.
Taken from the book Transpersonal Psychologies edited by Charles T. Tart, the descriptions of the virtues below come from John C. Lilly and Joseph E. Hart who attended the 1970 Arica retreat with Oscar Ichazo.
Understanding the virtues can help an individual work toward finding some freedom from the habits of personality type. It's easiest to understand each virtue by looking at it in contrast to the corresponding passion.
Type 1: Serenity appears when you become more accepting of things as they are instead of demanding that they meet your standards for how things should be.
Type 2: Humility appears when instead of seeking favored treatment and regard you accept that you are no more or less important than anyone else.
Type 3: Truthfulness appears when you find a sense of self that is true to who you are instead of playing to the expectations of an intended audience.
Type 4: Equanimity appears when you also see the positives you have to offer instead of just the negatives when comparing yourself to others.
Type 5: Detachment (Non-Attachment) appears when you allow yourself to more freely participate in the world instead of observing it from the sidelines.
Type 6: Courage appears when you step into action as circumstances dictate in spite of any lingering doubts or fears that you may have about doing so.
Type 7: Sobriety appears when you see endeavors through to the end instead of moving on to something easier and more interesting than what's at hand.
Type 8: Innocence appears when you allow yourself to experience tenderness and vulnerability instead of habitually pushing out against the world.
Type 9: Action appears when you pursue what's meaningful to you instead of simply going along to get along or falling into habitual routines and comfort.