I love this man called Deepak Chopra !!! This is what we need, a vow for non violence for inner peace and outer world peace !!! Think about it ! If we could restrain our inner violent nature !!! Wow wow wow ... I agree with some of the comments about why we still killing animals for food etc !!! For a vow of non violence, we all need to become a peace maker for all being including the animals which suffer in our hands. The higher level of our vow should include the violence against animals, especially the extreme violence of taking their lives Would you give it a go ? Take the vow for a few months at least and see if you could make it a long life commitment  being a vegan or a vegetarian ? We all could become a better human being in the process ??? Oh, don't forget remind others too, with your peace pendants. Explain to people around you that you want world peace and taking the vow of non violence with your peace pendant. I have found some bargain peace pendants out there for you to choose from. Order online via this site, proceeds go further to assist with peace making program. Namaste