Non-violence
This non-violence and the rejection of harming others is the central
idea of the Buddha's teaching. It has been explained as follows (in the
Vinaya):
True patient acceptance -- patient acceptance difficult to
attain --
Has been said to be real nirvana by the Buddha.
A monk who harms another and who acts violently
Towards another is not a religious person.
To fulfill the vinaya, it is necessary to carry about a water strainer
in order to avoid harming life in water. Since a person who does not carry
a water strainer is one who goes against loving kindness taught by the
Buddha, he must be uprooted from his foundation of harming another and
be earnestly advised of the need to actualize the four attitudes by which
one becomes an ascetic, namely,
1. Even if one is reviled, he should not
revile in return.
2. Even if one is angered, he should not retaliate
with anger.
3. Even if one is struck, he should not strike back.
4. Even if someone pries into one's affair, he should
not pry into someone else's affair.
Therefore, when those who have insight truly understand these four attitudes,
they will necessarily conclude that the renuciation of violence is the
quintessence of the teaching.