The acquirement of spiritual wisdom does not necessarily prevent us from making worldly mistakes; but because it develops the qualities that will prevent them, and because it takes to heart the lessons of experience, humbly and receptively, it does reduce the frequency of those mistakes.
Non-violence is a power which can be wielded equally by all—children, young men and women, the elders, provided they have a living faith in the Source of Love and have therefore equal love for all humankind. When non-violence is accepted as the law of life it must pervade the whole being and not be simply applied to isolated acts.