Explanation:

The first and most important is ahimsa, the principle of non-violence. Jains are largely pacifistic with the most ardent Jain's taking this to the extreme of avoiding harm to all living creatures and many forms of plant life.

The first fundamental way of living is non-violence as Lord Mahavira said, “Ahimsa Paramo Dharma”. The all-inclusive aspect of non-violence depicts three essential ethics in day to day living, namely

Non-hurting — This is the grossest form of non-violence explaining no physical hurt towards any form of life, knowingly or unknowingly. Being a human is the most valuable life as it has the power to save others from hurt. So, Ahimsa, in its grossest forms indicates not causing physical hurt, damage or injury to anyone.
Non-harming — This is the subtler form of Ahimsa expressing no intention of harming others, knowingly or unknowingly. A human, in the state of ahimsa (violence) tends to think negative for the others who are different from their one way of living and thinking. So, non-violence at subtler level means not harnessing the feelings of harm and vandalism towards any life form.
Non-hating — The subtlest form of non-violence is not to stay in the state of hatred towards any person-place-thing. We continually nurture the state of mind that is full of hatred and enmity towards the people, things and situations around, even knowing that we can’t change much about them. This hostile feeling of hatred actually causes unrest and disharmony amongst our own self. So, the subtlest form of non-violence is not to hate any form of life and live in accord to whatever life brings to us. This doesn’t mean withdrawing ourselves from any self effort but it emphasise on dropping hatred from any effort.