Make a decision. Do no harm. It's simple enough. Don't wreck anything. Don't hurt people, things or life. Don't make a mess unless you have the courage to both learn from and clean up the results. It's OK to break things, especially rules. Yet still, try to do no harm.
Then comes the contemplative part. Spend some time to sit with the thought of it. Mull it over. What does it mean to do no harm? How creative can we get? How far do we go? There are monks of some orders who pluck the hairs from their heads rather than run the risk of having to someday kill lice.
Mother nature is doing the job for me, thankfully. I'm glad I managed to dodge that bullet.
But I still have to decide what impact I am willing to make upon the world. Even the gentlest of footprints alters the landscape. It's impossible to leave no trace of our existence on this planet. Is there a distinguishable line between what's ethical and what's practical?
We see nature and conclude that harm is everywhere. We see in humanity the same. We have such a dark view of ourselves. Infected with an idea of unworthiness when the only unworthy thing is the idea itself. We wonder why we should bother with a cupful of water when the fire is raging. Yet that is the only way.
Against logic, it is easier to change the world by starting small. Begin first by doing no harm to yourself. That's the part they forget to tell you about. But how can we "do unto others" if we don't take steps away from harming ourselves? Start small.
Source : http://www.sentinelandenterprise.com/editorial/ci_31269782/hopeful-thinking-first-do-no-harm