Zen Wisdom 28

Beyond this, there are some basic criteria that can be used in assessing masters. First, consider their causes and conditions. In other words, their actions should be based on a foundation of emptiness; there should be no attachment in what they do. Second, consider their causes and consequences, or karma. The sense of emptiness that guides the actions of virtuous masters (causes and conditions) should accord with their karma (causes and consequences). That is to say, their actions need to be guided by a sense of responsibility. They should, at all times, be clearly aware of the consequences of their actions. Thus, there is an intimate relationship between responsibility and non-attachment.

These, then, are the marks of virtuous masters: they have a correct view of the Dharma, their actions reveal no attachment and they have a clear sense of responsibility.