The point of the quote is not so much about countering harm caused by others, but first: How confident can you be that your actions to help are not misguidedly

The point of the quote is not so much about countering harm caused by others, but first: How confident can you be that your actions to help are not misguidedly exacerbating problems? Is there a line beyond which one could be overconfident, our arrogant? What external feedback should you attend to?