What people need to wake up to is that apart from accidents all harmful actions are preceded by harmful intent.
Without this reality all you do is justify and hide from self.
Do you mean that by causing harm you're acting with a kind of intent that isn't attentive enough; that intent which is negligent is necessarily harmful intent? It depends on the semantics of the terms: intent which turns out to be harmful is different than intent that is designed to be harmful. So in the sense of describing the purpose behind the intent, not all accidents are preceded by harmful intent. Harmless intent can be harmful just as harmful intent can be harmless; you can do your best and still fail...hence the need to train ceaselessly.