"The Buddha's Ahimsa is quite in keeping with his middle path. To put it differently, the Buddha made a distinction between Principle and Rule. He did not make Ahimsa a matter of Rule. He enunciated it as a matter of Principle or way of life. In this he no doubt acted very wisely. A principle leaves you freedom to act. A rule does not. Rule either breaks you, or you break the rule."
January 1, 1970
https://en.wikiquote.org/wiki/Ahimsa