Albert Camus said this quote

I grant we should add a third category: that of the true healers. But it is a fact one doesn't come across many of them, and anyhow it must be a hard vocation. That's why I decided to take, in every predicament, the victim's side, so as to reduce the damage done. Among them I can at least try to discover how on attains to the third category; in other words, to peace.