Since everything is interrelated, since all things depend one upon another, nothing is absolute, nothing is separate, but all are part of the one indivisible whole.
In Zen Buddhism an action is considered good when it brings happiness and well-being to oneself and others, evil when it brings suffering and harm to oneself and others.
In Zen, actions speak louder than words. Doing is more important than knowing, and knowledge which cannot be translated into action is of little worth.