This progress among the people through Dhamma has been done by two means, by Dhamma regulations and by persuasion. Of these, Dhamma regulation is of little effect, while persuasion has much more effect. The Dhamma regulations I have given are that various animals must be protected. And I have given many other Dhamma regulations also. But it is by persuasion that progress among the people through Dhamma has had a greater effect in respect of harmlessness to living beings and non-killing of living beings.

Ashoka the Great