the way of cultivating quality

how can someone really learn to tame negative qualities like anger, attachment, pride and cultivate positive qualities like compassion, love and humility.

intellectual understanding of the anger and why it is bad is not really helpful to deal with it when you are actually angry.

pretending not to be angry, expressing anger or just compressing it again not only unskillful action but actually feeds the quality itself.

the only skilful action is to let it pass through you. acknowledge it but neither deny nor react. certainly easy to say hard to practice