For the Benefit of All Beings: A Commentary on the Way of the Bodhisattva (Shambhala Classics)

by Dalai Lama XIV

As a destructive force there is nothing as strong as anger. An instant of anger can destroy all the positive actions accumulated over thousands of kalpas through the practice of generosity, making offerings to the Buddhas, keeping discipline, and so on. Indeed, there is no fault as serious as anger.